Migrate CI upload-artifact action from v2 to v3

[crioux-stripe]

Context

Previous builds are getting an error message due to the deprecation of some older github actions. This is an attempt to get our builds working again.

Error: This request has been automatically failed because it uses a deprecated version of `actions/upload-artifact: v2`. Learn more: https://github.blog/changelog/2024-02-13-deprecation-notice-v1-and-v2-of-the-artifact-actions/

Checklist

• [x] ./gradlew build compiles code correctly
• [ ] Added new tests where applicable
• [x] ./gradlew test passes all tests
• [ ] Extended README or added javadocs where applicable

[github-actions[bot]]

Test Results

538 tests   532 :white_check_mark:  7m 40s :stopwatch: 139 suites    6 :zzz: 139 files      0 :x:

Results for commit 03a3a4c0.

[crioux-stripe]

Build went through, it looks as though this should make the master branch happy again.