chore(deps): update alpine docker tag to v3.20

Author: renovate[bot]

Dockerfile

@@ -6,7 +6,7 @@ COPY main.go .
 ARG SKAFFOLD_GO_GCFLAGS
 RUN go build -gcflags="${SKAFFOLD_GO_GCFLAGS}" -trimpath -o /k8s-leader-example main.go
 
-FROM alpine:3.19
+FROM alpine:3.20
 # Define GOTRACEBACK to mark this container as using the Go language runtime
 # for `skaffold debug` (https://skaffold.dev/docs/workflows/debug/).
 ENV GOTRACEBACK=single

goreleaser.dockerfile

@@ -1,3 +1,3 @@
-FROM alpine:3.19
+FROM alpine:3.20
 ENTRYPOINT ["/k8s-leader-example"]
 COPY k8s-leader-example /