chore(deps): update alpine:3.21 docker digest to 48b0309

[renovate]

This PR contains the following updates:

Package	Type	Update	Change
alpine	final	digest	c3f8e73 → 48b0309

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No actionable comments were generated in the recent review. 🎉

ℹ️ Recent review info

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📥 Commits

Reviewing files that changed from the base of the PR and between 68a5c2d and b7fff9b.

📒 Files selected for processing (1)

• Dockerfile

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📝 Walkthrough

Walkthrough

The Dockerfile's healthcheck-build stage was updated to pin a different sha256 digest for the alpine:3.21 base image. No other build stages, instructions, or exported/public entities were modified.

Changes

File	Change
Dockerfile	Updated alpine:3.21@sha256:... digest on the healthcheck-build stage's FROM line

Sequence Diagram(s)

Not applicable — this is a single-line base image digest pin with no observable control or data flow to diagram.

Related issues: None referenced.

Related PRs: None referenced.

Suggested labels: dependencies, docker

Suggested reviewers: None suggested — trivial digest bump.

Poem: A rabbit hopped, checked the base image's name, one digest swapped, the build stays the same.

🚥 Pre-merge checks | ✅ 2

✅ Passed checks (2 passed)

Check name	Status	Explanation
Linked Issues check	✅ Passed	Check skipped because no linked issues were found for this pull request.
Out of Scope Changes check	✅ Passed	Check skipped because no linked issues were found for this pull request.

✨ Finishing Touches

🧪 Generate unit tests (beta)

• Create PR with unit tests
• Commit unit tests in branch renovate/alpine-3.21

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