Bump alpine from 3.20.0 to 3.20.2 (#661)

Bumps alpine from 3.20.0 to 3.20.2.

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

Signed-off-by: dependabot[bot] <support@github.com>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

Dockerfile

@@ -10,6 +10,6 @@ COPY script script
 
 RUN CGO_ENABLED=0 GOOS=linux go build -o /go/bin/ratelimit -ldflags="-w -s" -v github.com/envoyproxy/ratelimit/src/service_cmd
 
-FROM alpine:3.20.0@sha256:77726ef6b57ddf65bb551896826ec38bc3e53f75cdde31354fbffb4f25238ebd AS final
+FROM alpine:3.20.2@sha256:0a4eaa0eecf5f8c050e5bba433f58c052be7587ee8af3e8b3910ef9ab5fbe9f5 AS final
 RUN apk --no-cache add ca-certificates && apk --no-cache update
 COPY --from=build /go/bin/ratelimit /bin/ratelimit