build: use debian source image tag w/ minor version

Author: buchdag

Dockerfile.debian

@@ -12,7 +12,7 @@ RUN go mod download
 # Build the docker-gen executable
 RUN GOOS=linux go build -ldflags "-X main.buildVersion=${VERSION}" -o docker-gen ./cmd/docker-gen
 
-FROM debian:11-slim
+FROM debian:11.2-slim
 
 ENV DOCKER_HOST unix:///tmp/docker.sock
 
@@ -25,4 +25,4 @@ RUN apt-get update \
 # Install docker-gen from build stage
 COPY --from=go-builder /build/docker-gen /usr/local/bin/docker-gen
 
-ENTRYPOINT ["/usr/local/bin/docker-gen"]
+ENTRYPOINT ["/usr/local/bin/docker-gen"]