[docker] Bump alpine from 3.21 to 3.22 in /apps/grafana-proxy (#53)

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

Author: dependabot[bot]

apps/grafana-proxy/Dockerfile

@@ -13,7 +13,7 @@ COPY common.mk /workspace/
 
 RUN make build
 
-FROM alpine:3.21@sha256:a8560b36e8b8210634f77d9f7f9efd7ffa463e380b75e2e74aff4511df3ef88c
+FROM alpine:3.22@sha256:8a1f59ffb675680d47db6337b49d22281a139e9d709335b492be023728e11715
 
 COPY --from=build /workspace/apps/grafana-proxy/build/grafana-proxy /grafana-proxy