VECTOR property type constraints

[JPryce-Aklundh]

This PR will fail for now because it uses xrefs pointing to unmerged changes (part of #1299)

See also:
#1299

TODO:

• Add results to show constraints
• Confirm release version (and update all instances of "2025.xx" in this PR to whatever that version is)

[neo4j-docops-agent]

This PR includes documentation updates
View the updated docs at https://neo4j-docs-cypher-1325.surge.sh

Updated pages:

• Create, show, and drop constraints
• Syntax
• Additions, deprecations, removals, and compatibility

[Hunterness]

you had one todo about show output but I also have a comment regarding show constraints. In the output column information for show constraints we should update

| createStatement
| Statement used to create the constraint.
| STRING

to be

| createStatement
| Statement used to create the constraint, or `null` if the constraint cannot be created through `CREATE CONSTRAINT`.
| STRING

or something similar. This to cover that it should be null in Cypher 5 for property type constraints on vectors as well as for dependent constraints once graph types are released (so I want it more generic now as to not need to update it twice)