fix: the unmatching template issue introduced from #20237

[xcompass]

The error in the notification controller shows unmatching "{{end}}"

time="2024-10-16T21:28:48Z" level=error msg="error getting api from namespace: argocd error: error in 'app-health-degraded' teams.potentialAction: template: app-health-degraded:14: unexpected {{end}}"
time="2024-10-16T21:28:48Z" level=error msg="Failed to get api: errors getting apis: [error in 'app-health-degraded' teams.potentialAction: template: app-health-degraded:14: unexpected {{end}}]" resource=argocd/guestbook

This PR is to correct the above issue and make the notification controller happy again!

Since #20237 has not been included in any release yet. No cherry-pick is needed.

Checklist:

• Either (a) I've created an enhancement proposal and discussed it with the community, (b) this is a bug fix, or (c) this does not need to be in the release notes.
• The title of the PR states what changed and the related issues number (used for the release note).
• The title of the PR conforms to the Toolchain Guide
• I've included "Closes [ISSUE #]" or "Fixes [ISSUE #]" in the description to automatically close the associated issue.
• I've updated both the CLI and UI to expose my feature, or I plan to submit a second PR with them.
• Does this PR require documentation updates? No
• I've updated documentation as required by this PR.
• I have signed off all my commits as required by DCO
• I have written unit and/or e2e tests for my change. PRs without these are unlikely to be merged.
• My build is green (troubleshooting builds).
• My new feature complies with the feature status guidelines.
• I have added a brief description of why this PR is necessary and/or what this PR solves.
• Optional. My organization is added to USERS.md.
• Optional. For bug fixes, I've indicated what older releases this fix should be cherry-picked into (this may or may not happen depending on risk/complexity).

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[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 56.05%. Comparing base (cc98925) to head (a25bdb4).
Report is 376 commits behind head on master.

Additional details and impacted files

@@            Coverage Diff             @@
##           master   #20410      +/-   ##
==========================================
+ Coverage   56.02%   56.05%   +0.02%     
==========================================
  Files         322      322              
  Lines       44802    44802              
==========================================
+ Hits        25099    25112      +13     
+ Misses      17104    17086      -18     
- Partials     2599     2604       +5     

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[ishitasequeira]

LGTM!!