neo4j-2025.01: update to OpenJDK 21 to fix compilation error

Namely:

```
$ mvn package '-DskipTests=true' -T14C -q '-Doverwrite=true'
Security framework of XStream not explicitly initialized, using predefined black list on your own risk.
Security framework of XStream not explicitly initialized, using predefined black list on your own risk.
[ERROR] scalac error: '21' is not a valid choice for '-target'
[ERROR] scalac error: bad option: '-target:jvm-21'
[ERROR] scalac error: '21' is not a valid choice for '-target'
[ERROR] scalac error: bad option: '-target:jvm-21'
[ERROR] exception compilation error occurred!!!
```

neo4j-2025.01.yaml

@@ -8,7 +8,7 @@ package:
   dependencies:
     runtime:
       - bash
-      - openjdk-17-jre
+      - openjdk-21-jre
     provides:
       - neo4j=${{package.full-version}}
 
@@ -20,7 +20,7 @@ environment:
       - ca-certificates-bundle
       - curl
       - maven
-      - openjdk-17-default-jdk
+      - openjdk-21-default-jdk
       - wolfi-base
       - wolfi-baselayout
 
@@ -94,7 +94,7 @@ test:
   environment:
     contents:
       packages:
-        - openjdk-17-default-jvm
+        - openjdk-21-default-jvm
         - wait-for-it
   pipeline:
     - runs: |