[ADMIN] Update link to SIG meeting notes.

[marcalff]

Fixes # (issue)

Changes

Please provide a brief description of the changes here.

• The meeting notes document was moved, due to Migrate all community google docs to the OpenTelemetry.io Google Workspace community#3182
• Adjust the link accordingly.

For significant contributions please make sure you have completed the following items:

• CHANGELOG.md updated for non-trivial changes
• Unit tests have been added
• Changes in public API reviewed

[marcalff]

Wrong branch, closing and creating again

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 89.93%. Comparing base (6cafbac) to head (73a9157).

Additional details and impacted files

@@           Coverage Diff           @@
##             main    #3802   +/-   ##
=======================================
  Coverage   89.93%   89.93%           
=======================================
  Files         225      225           
  Lines        7163     7163           
=======================================
  Hits         6441     6441           
  Misses        722      722           

🚀 New features to boost your workflow:

• ❄️ Test Analytics: Detect flaky tests, report on failures, and find test suite problems.