Update gcr.io/distroless/base-debian12:nonroot Docker digest to 6d4a4f4

Author: renovate[bot]

Dockerfile

@@ -5,7 +5,7 @@ COPY . /build
 RUN cd /build && \
     go build ./cmd/http-auth-server
 
-FROM gcr.io/distroless/base-debian12:nonroot@sha256:c3584d9160af7bbc6a0a6089dc954d0938bb7f755465bb4ef4265aad0221343e
+FROM gcr.io/distroless/base-debian12:nonroot@sha256:6d4a4f40e93615df1677463ca56456379cc3a4e2359308c9e72bc60ffc4a12a9
 
 COPY --from=builder /build/http-auth-server /app/http-auth-server