Upgrade Java to v17 or v21

[techcobweb]

Story

As a galasa test developer, I want to use a supported JVM level, and some features of Java (which were added after v11 was shipped) in my Galasa tests.

Background

• The version of Java galasa supports is currently v11.
• According to https://www.ibm.com/support/pages/semeru-runtimes-support#lifecycle the JVM is out of service Oct 2024.
• We should keep things current by moving to v21 (skipping v17)

(These tasks are for creating pull requests, not merging, so these may not be done) Maven:

• [x] integratedtests
• [x] cli/pkg/embedded/templates/projectCreate/parent-project/pom.xml
• [x] maven
• [x] simplatform
• [x] wrapping
• [x] Buildutils
• [x] Framework

Gradle:

• [x] Framework
• [x] managers
• [x] obr
• [x] webui
• [x] extensions
• [x] integratedtests

Other:

• [ ] Automation
  • Update Dockerfile From references:
  • [ ] webapp (requires tomcat 11, jdk 21)
  • [ ] openapi
  • [ ] openjdk11-ibm
  • [ ] openjdk11-ibm-gradle
  • [ ] swagger
  • [ ] simplatform-amd64
  • Update tekton pipelines
  • [ ] automation
  • [ ] cli
  • [ ] codecoverage
  • [ ] obr-generic
  • [ ] run-tests? (uses local.CoreLocalJava11Ubuntu)
  • [ ] simplatform (pr only)
  • Update tekton tasks
  • [ ] gradle-build
  • [ ] maven-build

[Wyvinar]

How I upgraded Gradle locally: used sdkman to install Gradle 8.8 (sdk install gradle 8.8) used the sdk home gradle 8.8 command to find it's home added [gradle-home]/bin to path (replacing the v6 path)