Dockerfile.bootstrap: Update bootstrap to Alpine 3.14

Author: the-maldridge

.github/workflows/bootstrap.yml

@@ -21,8 +21,8 @@ jobs:
         uses: docker/login-action@v1
         with:
           registry: ghcr.io
-          username: void-robot
-          password: ${{ secrets.CR_PAT }}
+          username: ${{ github.actor }}
+          password: ${{ secrets.GITHUB_TOKEN }}
       - name: Set version
         run: echo "RELEASE_VERSION=$(git rev-parse --short HEAD)" >> $GITHUB_ENV
       - name: Build and push
@@ -31,4 +31,6 @@ jobs:
         with:
           file: Dockerfile.bootstrap
           push: true
-          tags: "ghcr.io/void-linux/docker-bootstrap:${{ env.RELEASE_VERSION }}"
+          tags: |
+            "ghcr.io/void-linux/docker-bootstrap:${{ env.RELEASE_VERSION }}"
+            "ghcr.io/void-linux/docker-bootstrap:latest"

Dockerfile.bootstrap

@@ -1,5 +1,5 @@
 # 1) use alpine to generate a void environment
-FROM alpine:3.12 as stage0
+FROM alpine:3.14 as stage0
 ARG REPOSITORY=https://alpha.de.repo.voidlinux.org
 ARG ARCH=x86_64
 COPY keys/* /target/var/db/xbps/keys/
@@ -14,7 +14,7 @@ RUN apk add ca-certificates curl && \
 
 FROM scratch
 LABEL org.opencontainers.image.source https://github.com/void-linux/void-docker
-LABEL org.voidlinux.docker.bootstrapdate 2021-03-12
+LABEL org.voidlinux.docker.bootstrapdate 2021-10-20
 COPY --from=stage0 /target /
 # We dump the cache here as its only valid for x86_64 and we're trying
 # to be multi-arch