Add Paul and Sumukh as maintainers and codeowners

[derek-ho]

Description

[Describe what this change achieves]

Issues Resolved

[List any issues this PR will resolve]

Check List

• New functionality includes testing.
  • All tests pass, including unit test, integration test and doctest
• New functionality has been documented.
  • New functionality has javadoc added
  • New functionality has user manual doc added
• Commits are signed per the DCO using --signoff

By submitting this pull request, I confirm that my contribution is made under the terms of the Apache 2.0 license.
For more information on following Developer Certificate of Origin and signing off your commits, please check here.

[codecov]

Codecov Report

Merging #200 (b0a7e4e) into main (2a184f9) will not change coverage.
The diff coverage is n/a.

@@           Coverage Diff           @@
##             main     #200   +/-   ##
=======================================
  Coverage   53.08%   53.08%           
=======================================
  Files          33       33           
  Lines        1622     1622           
  Branches      288      288           
=======================================
  Hits          861      861           
  Misses        673      673           
  Partials       88       88           

Flag	Coverage Δ
dashboards-query-workbench	53.08% <ø> (ø)

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