Conditionally run unit tests and integration tests on CI

[JyotinderSingh]

Currently unit tests and integration tests for the core server are executed even if no source code is changed. For instance, even if changes are made only to the docs/ directory the tests are still being run - this leads to compute wastage.

We need to modify the GitHub workflows to run integration and unit tests only when actual code files are modified.

[sebzz2k2]

Hey @JyotinderSingh Can i pick it up. I can give this a try Thankyou

[JyotinderSingh]

Hey @JyotinderSingh Can i pick it up. I can give this a try Thankyou

Assigned.

[lucifercr07]

Closing, merged as part of https://github.com/DiceDB/dice/pull/928