De-ignore and solve failing docker tests in 5.23

[vga91]

See e.g. https://github.com/neo4j-contrib/neo4j-apoc-procedures/actions/runs/10593054612/job/29353711717#step:6:10730

    java.lang.AssertionError: Should not have thrown exception when trying to start Neo4j: org.gradle.tooling.BuildException: Could not execute build using connection to Gradle distribution 'https://services.gradle.org/distributions/gradle-8.4-bin.zip'.
        at org.junit.Assert.fail(Assert.java:89)
        at apoc.neo4j.docker.CoreExtendedTest.checkForCoreAndExtended(CoreExtendedTest.java:45)

These errors seemed to be solved in 5.21 (see here), but have reappeared in this version.

Changes

• De-ignored docker enterprise tests which use APOC Core
• Changed NEO4J_VERSION_CI to NEO4JVERSION, since here this env var is picked, otherwise we receive a ModuleVersionNotFoundException: Could not find org.neo4j:neo4j:5.23.0. ,
  since we have to pick the latest codeartifact version number (e.g. 5.23.0-7553, see here), instead of the 5.23.0 version
• Cherry-picked dev commit eff84ec
• Cherry-picked dev commit 0d0bd0e