Remove $node->subgraphIdentity->contentStreamId

[mhsdesign]

Subtask of #4564

The contentStreamId is currently still used

• in Neos.Seo
  -> TASK: Adjust to Removal of Node::subgraphIdentity neos-seo#187
• in the Node
• in the NodeAggregate
  • all usages removed
• as cache identifier for subgraphs (in its identity)
• in property adjustments for publishing events based from a node
• in the e2e test in the NodeDiscriminator::fromNode
  -> TASK: 5034 fully completely workspace aware behat tests #5169
• in the NodeCacheEntryIdentifier and Neos.Caching.entryIdentifierForNode
  -> BUGFIX Workspace aware NodeCacheEntryIdentifier #5083
• in the old legacy NodeAddressFactory
  -> !!! TASK: Refactor Node property mapper to use new NodeAddress #5068
• in the Fusion CacheTag -> BUG: ContentCache entries and keys are not workspace/contentstream aware #4810
• for equals check against AssetUsageReference (because the asset usage stuff is not workspace aware yet)
  • will be fixed via Adjust AssetUsageProjection to use workspace instead of content stream id #5084 , but as the used part is currently broken either way we can go ahead: BUG ImageVariantGarbageCollector is never triggered in Neos 9 #5145