[Snyk] Security upgrade alpine from 3.20 to 3.21.0

[caniszczyk]

Snyk has created this PR to fix 1 vulnerabilities in the dockerfile dependencies of this project.

Keeping your Docker base image up-to-date means you’ll benefit from security fixes in the latest version of your chosen image.

Snyk changed the following file(s):

• cmd/pipecd/Dockerfile

We recommend upgrading to alpine:3.21.0, as this image has only 0 known vulnerabilities. To do this, merge this pull request, then verify your application still works as expected.

Vulnerabilities that will be fixed with an upgrade:

	Issue	Score
	CVE-2024-9143 SNYK-ALPINE320-OPENSSL-8235201	364
	CVE-2024-9143 SNYK-ALPINE320-OPENSSL-8235201	364

---

Important

• Check the changes in this PR to ensure they won't cause issues with your project.
• Max score is 1000. Note that the real score may have changed since the PR was raised.
• This PR was automatically created by Snyk using the credentials of a real user.

---

Note: You are seeing this because you or someone else with access to this repository has authorized Snyk to open fix PRs.

For more information:
🧐 View latest project report
📜 Customise PR templates
🛠 Adjust project settings
📚 Read about Snyk's upgrade logic

---

Learn how to fix vulnerabilities with free interactive lessons:

🦉 Learn about vulnerability in an interactive lesson of Snyk Learn.

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 25.74%. Comparing base (e276b89) to head (aa0dc29).
Report is 398 commits behind head on master.

Additional details and impacted files

@@           Coverage Diff           @@
##           master    #5404   +/-   ##
=======================================
  Coverage   25.74%   25.74%           
=======================================
  Files         449      449           
  Lines       48452    48452           
=======================================
  Hits        12474    12474           
  Misses      35005    35005           
  Partials      973      973           

☔ 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.