chore: bump alpine from 3.23.3 to 3.23.4

Bumps alpine from 3.23.3 to 3.23.4.

---
updated-dependencies:
- dependency-name: alpine
  dependency-version: 3.23.4
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

Signed-off-by: dependabot[bot] <support@github.com>

Author: dependabot[bot]

Dockerfile

@@ -21,7 +21,7 @@ RUN --mount=target=. --mount=target=/root/.cache,type=cache \
     CGO_ENABLED=0 go build -o /out/ -ldflags '-s -d -w' ./cmd/...; \
     file /out/archivista | grep "statically linked"
 
-FROM alpine:3.23.3@sha256:25109184c71bdad752c8312a8623239686a9a2071e8825f20acb8f2198c3f659
+FROM alpine:3.23.4@sha256:5b10f432ef3da1b8d4c7eb6c487f2f5a8f096bc91145e68878dd4a5019afde11
 COPY --from=build /out/archivista /bin/archivista
 COPY --from=build /out/archivistactl /bin/archivistactl
 COPY --from=build /usr/local/bin/atlas /bin/atlas