Feat: adds health check endpoint

[bhimrazy]

Before submitting

• Was this discussed/agreed via a Github issue? (no need for typos and docs improvements)
• Did you read the contributor guideline, Pull Request section?
• Did you make sure to update the docs?
• Did you write any new necessary tests?

What does this PR do?

Fixes #181 .

• Adds health check endpoint /health to get the status of workers

PR review

Anyone in the community is free to review the PR once the tests have passed.
If we didn't discuss your PR in GitHub issues there's a high chance it will not be merged.

Did you have fun?

Make sure you had fun coding 🙃

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 79%. Comparing base (16efafe) to head (492bad5).

Additional details and impacted files

@@         Coverage Diff         @@
##           main   #182   +/-   ##
===================================
  Coverage    79%    79%           
===================================
  Files        13     13           
  Lines       991   1003   +12     
===================================
+ Hits        780    792   +12     
  Misses      211    211           

[aniketmaurya]

Looks great so far @bhimrazy 🚀 !! Added a comment. Also, please add a test. Looking forward to this PR.