fix(ci): Bash syntax error in GitHub Actions

[hangy]

What

Fix bash syntax error in cosign stage.

Screenshot

N/A

Fixes bug(s)

Part of

N/A

[codecov-commenter]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 43.33%. Comparing base (15175a6) to head (d361dd8).

Additional details and impacted files

@@            Coverage Diff            @@
##               main     #371   +/-   ##
=========================================
  Coverage     43.33%   43.33%           
  Complexity       58       58           
=========================================
  Files            18       18           
  Lines           450      450           
  Branches         46       46           
=========================================
  Hits            195      195           
  Misses          227      227           
  Partials         28       28           

☔ View full report in Codecov by Sentry.
📢 Have feedback on the report? Share it here.

🚀 New features to boost your workflow:

• ❄️ Test Analytics: Detect flaky tests, report on failures, and find test suite problems.
• 📦 JS Bundle Analysis: Save yourself from yourself by tracking and limiting bundle sizes in JS merges.

[john-gom]

@hangy I think the deploy is now failing because the job that it waits for is renamed due to the new matrix strategy. I'm away from my desk until this evening so will try and figure it out then unless you have time to look at it today. Cc @harsh-791