Jdk migration of mantis-common to compile on JDK 17

[Adithya2907]

Context

Upgrade JDK version to 17. This PR upgrades the mantis-common module.
Part of #355

• ../gradlew build in the mantis-common module fails org.mockito.exceptions.base.MockitoException at OperatorGroupByTest.java:1039 Caused by: java.lang.reflect.InaccessibleObjectException at OperatorGroupByTest.java error.
• The reason for the error is using a version of the Mockito package not supported by JDK 17.
• Therefore, updated the dependency from 2.0.+ to 2.23.4 which solves this problem.

Attaching screenshot of success build of the mantis-common module using JDK 17.

Checklist

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

[Andyz26]

We would prefer handling the Java version as a whole instead of a single module level. Please do not pursue such a change for now as this requires more compatibility validation coordination.

[github-actions]

Test Results

128 files  ±0  128 suites  ±0   8m 6s ⏱️ -57s
543 tests ±0  535 ✔️ +1  8 💤 ±0  0 ❌  - 1 
543 runs   - 1  535 ✔️ ±0  8 💤 ±0  0 ❌  - 1 

Results for commit d58d3a2. ± Comparison against base commit 867913f.