Fix typo in MAINTAINING.md

[devleejb]

What this PR does / why we need it:

Fixed typo in MAINTAINING.md

• Corrected a mislinked hyperlink for the HELM Chart file line within the MAINTAINING.md file.

Which issue(s) this PR fixes:

Fixes #

Special notes for your reviewer:

Does this PR introduce a user-facing change?:

NONE

Additional documentation:

Checklist:

• Added relevant tests or not required
• Didn't break anything

[CLAassistant]

All committers have signed the CLA.

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Comparison is base (d932b59) 49.27% compared to head (de2d550) 49.27%.

Additional details and impacted files

@@           Coverage Diff           @@
##             main     #739   +/-   ##
=======================================
  Coverage   49.27%   49.27%           
=======================================
  Files          69       69           
  Lines       10081    10081           
=======================================
  Hits         4967     4967           
  Misses       4598     4598           
  Partials      516      516           

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[krapie]

Thank you for your contribution.

Looks like it's the first PR of 2024! 🌅

[hackerwins]

Thanks for your contribution.