build(deps): bump alpine from 3.20.3 to 3.21.0 in /Containers/watchtower

Bumps alpine from 3.20.3 to 3.21.0.

---
updated-dependencies:
- dependency-name: alpine
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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dependabot[bot] 2024-12-16 10:38:18 +00:00 committed by GitHub
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commit c1dae23ffd
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@ -2,7 +2,7 @@
# From https://github.com/containrrr/watchtower/blob/main/dockerfiles/Dockerfile.self-contained
FROM containrrr/watchtower:1.7.1 AS watchtower
FROM alpine:3.20.3
FROM alpine:3.21.0
RUN set -ex; \
apk upgrade --no-cache -a; \