When exporting a contenttype which has SEO metadata, that SEO metadata is not exported

Steps to reproduce :

1. Create a contentype and define some SEO data
2. Export the data
   php bin/console ibexa:migrations:generate --type=content_type --mode=create --match-property=content_type_identifier --value=content_seo
3. Inspect the exported data and notice that the SEO metadata is not in the export

   -
       type: content_type
       mode: create
       metadata:
           identifier: content_seo
           mainTranslation: eng-GB
           creatorId: 14
           creationDate: '2023-06-08T08:04:41+00:00'
           remoteId: f3bad8aa7ce643251bb941c744f84dc0
           urlAliasSchema: ''
           nameSchema: '<name>'
           container: true
           defaultAlwaysAvailable: true
           defaultSortField: 2
           defaultSortOrder: 0
           contentTypeGroups:
               - Content
           translations:
               eng-GB:
                   name: 'Content With SEO'
                   description: 'Content with SEO'
       fields:
           -
               identifier: name
               type: ezstring
               position: 0
               translations:
                   eng-GB:
                       name: Name
                       description: ''
               required: true
               searchable: true
               infoCollector: false
               translatable: true
               category: content
               defaultValue: null
               fieldSettings: \{  }
               validatorConfiguration:
                   StringLengthValidator:
                       maxStringLength: null
                       minStringLength: null
           -
               identifier: number
               type: ezinteger
               position: 1
               translations:
                   eng-GB:
                       name: Number
                       description: ''
               required: false
               searchable: true
               infoCollector: false
               translatable: true
               category: content
               defaultValue: 5
               fieldSettings: \{  }
               validatorConfiguration:
                   IntegerValueValidator:
                       minIntegerValue: 1
                       maxIntegerValue: 10
           -
               identifier: vfield_64818b995bea3
               type: ibexa_seo
               position: 100
               translations:
                   eng-GB:
                       name: 'SEO Vtest'
                       description: 'V SEO description'
               required: false
               searchable: false
               infoCollector: false
               translatable: true
               category: content
               defaultValue:
                   value: null
               fieldSettings:
                   types: null
               validatorConfiguration: \{  }
       references:
           -
               name: ref_{_}content_seo{_}_content_type_id
               type: content_type_id
   

1. As a consequence, SEO metadata will not be included when importing the migration export again

Importing Content with SEO meta data does not work ( export seems to work )

Steps to reproduce:

1. Export some content that has SEO metadata defined:
   php bin/console ibexa:migrations:generate --type=content --mode=create --match-property=content_id --value=67
2. Inspect the exported data, the SEO metadata is there :

   -
       type: content_type
       mode: create
       metadata:
           identifier: content_seo
           mainTranslation: eng-GB
           creatorId: 14
           creationDate: '2023-06-08T08:04:41+00:00'
           remoteId: f3bad8aa7ce643251bb941c744f84dc0
           urlAliasSchema: ''
           nameSchema: '<name>'
           container: true
           defaultAlwaysAvailable: true
           defaultSortField: 2
           defaultSortOrder: 0
           contentTypeGroups:
               - Content
           translations:
               eng-GB:
                   name: 'Content With SEO'
                   description: 'Content with SEO'
       fields:
           -
               identifier: name
               type: ezstring
               position: 0
               translations:
                   eng-GB:
                       name: Name
                       description: ''
               required: true
               searchable: true
               infoCollector: false
               translatable: true
               category: content
               defaultValue: null
               fieldSettings: {  }
               validatorConfiguration:
                   StringLengthValidator:
                       maxStringLength: null
                       minStringLength: null
           -
               identifier: number
               type: ezinteger
               position: 1
               translations:
                   eng-GB:
                       name: Number
                       description: ''
               required: false
               searchable: true
               infoCollector: false
               translatable: true
               category: content
               defaultValue: 5
               fieldSettings: {  }
               validatorConfiguration:
                   IntegerValueValidator:
                       minIntegerValue: 1
                       maxIntegerValue: 10
           -
               identifier: vfield_64818b995bea3
               type: ibexa_seo
               position: 100
               translations:
                   eng-GB:
                       name: 'SEO Vtest'
                       description: 'V SEO description'
               required: false
               searchable: false
               infoCollector: false
               translatable: true
               category: content
               defaultValue:
                   value: null
               fieldSettings:
                   types: null
               validatorConfiguration: {  }
       references:
           -
               name: ref__content_seo__content_type_id
               type: content_type_id
   

1. Import the data again
2. Notice that the title=V SEO title test1 is not imported