Update docker/build-push-action action to v6

Reviewed-on: #64

.forgejo/workflows/docker.yml

@@ -26,7 +26,7 @@ jobs:
       - name: Set up Docker Buildx
         uses: docker/setup-buildx-action@v2
       - name: Build and push
-        uses: docker/build-push-action@v4
+        uses: docker/build-push-action@v6
         with:
           platforms: linux/amd64,linux/arm64/v8
           push: true

Dockerfile

@@ -1,5 +1,5 @@
 # STEP 1 build executable binary
-FROM golang:1.22.3-alpine AS builder
+FROM golang:1.22.6-alpine AS builder
 
 ENV CADVISOR_VERSION="v0.49.1"
 
@@ -11,7 +11,7 @@ RUN apk upgrade --no-cache \
  && ./build/build.sh
 
 # STEP 2 build the image including only the binary
-FROM alpine:3.20.0
+FROM alpine:3.20.2
 
 RUN apk upgrade --no-cache && apk add libc6-compat device-mapper findutils zfs \
  && rm -rf /var/cache/apk/*