chore(deps): bump alpine from 3.19.1 to 3.20.2

Bumps alpine from 3.19.1 to 3.20.2.

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

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

Dockerfile

@@ -1,4 +1,4 @@
-FROM alpine:3.19.1 AS build
+FROM alpine:3.20.2 AS build
 RUN mkdir -p /build/etc/apk /build/var/run
 RUN cp -r /etc/apk/* /build/etc/apk/
 RUN apk add --no-cache --initdb -p /build qemu-guest-agent musl