[Snyk] Security upgrade alpine from 3.21.3 to 3.22.2

[caniszczyk]

Snyk has created this PR to fix 3 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):

• docs/Dockerfile

We recommend upgrading to alpine:3.22.2, 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-2025-9230 SNYK-ALPINE321-OPENSSL-13174128	436
	CVE-2025-9230 SNYK-ALPINE321-OPENSSL-13174128	436
	CVE-2025-9231 SNYK-ALPINE321-OPENSSL-13174129	436
	CVE-2025-9231 SNYK-ALPINE321-OPENSSL-13174129	436
	CVE-2025-9232 SNYK-ALPINE321-OPENSSL-13174130	436

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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.

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[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 28.84%. Comparing base (738066c) to head (5b424da).
⚠️ Report is 8 commits behind head on master.

Additional details and impacted files

@@           Coverage Diff           @@
##           master    #6311   +/-   ##
=======================================
  Coverage   28.83%   28.84%           
=======================================
  Files         560      560           
  Lines       59899    59899           
=======================================
+ Hits        17273    17277    +4     
+ Misses      41304    41301    -3     
+ Partials     1322     1321    -1     

Flag	Coverage Δ
.	23.29% <ø> (ø)
.-pkg-app-pipedv1-plugin-analysis	32.64% <ø> (ø)
.-pkg-app-pipedv1-plugin-kubernetes	58.54% <ø> (ø)
.-pkg-app-pipedv1-plugin-kubernetes_multicluster	67.63% <ø> (ø)
.-pkg-app-pipedv1-plugin-scriptrun	54.83% <ø> (ø)
.-pkg-app-pipedv1-plugin-terraform	38.65% <ø> (ø)
.-pkg-app-pipedv1-plugin-wait	33.92% <ø> (ø)
.-pkg-app-pipedv1-plugin-waitapproval	52.71% <ø> (ø)
.-pkg-plugin-sdk	50.34% <ø> (+0.19%)	⬆️
.-tool-actions-gh-release	19.23% <ø> (ø)
.-tool-actions-plan-preview	25.51% <ø> (ø)
.-tool-codegen-protoc-gen-auth	0.00% <ø> (ø)

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