chore(deps): update docker/setup-qemu-action action to v4

.gitea/workflows/build.yaml

@@ -17,8 +17,6 @@ jobs:
     steps:
       - uses: actions/checkout@v6.0.2
       - uses: docker/setup-qemu-action@v4.0.0
-        with:
-          image: harbor.cryptic.systems/docker/tonistiigi/binfmt:latest
       - uses: docker/setup-buildx-action@v4.0.0
 
       - name: Build image
@@ -37,8 +35,6 @@ jobs:
     steps:
       - uses: actions/checkout@v6.0.2
       - uses: docker/setup-qemu-action@v4.0.0
-        with:
-          image: harbor.cryptic.systems/docker/tonistiigi/binfmt:latest
       - uses: docker/setup-buildx-action@v4.0.0
 
       - name: Build image

.gitea/workflows/release.yaml

@@ -11,8 +11,6 @@ jobs:
     steps:
       - uses: actions/checkout@v6.0.2
       - uses: docker/setup-qemu-action@v4.0.0
-        with:
-          image: harbor.cryptic.systems/docker/tonistiigi/binfmt:latest
       - uses: docker/setup-buildx-action@v4.0.0
 
       - uses: docker/login-action@v4.1.0
@@ -38,8 +36,6 @@ jobs:
     steps:
       - uses: actions/checkout@v6.0.2
       - uses: docker/setup-qemu-action@v4.0.0
-        with:
-          image: harbor.cryptic.systems/docker/tonistiigi/binfmt:latest
       - uses: docker/setup-buildx-action@v4.0.0
 
       - uses: docker/login-action@v4.1.0
@@ -100,4 +96,4 @@ jobs:
           --src-password ${{ secrets.GIT_CRYPTIC_SYSTEMS_PACKAGE_REGISTRY_TOKEN }} \
           --src-username volker.raschek \
             docker://git.cryptic.systems/volker.raschek/postfixadmin-fetchmail:${TAG} \
-            docker://docker.io/volkerraschek/postfixadmin-fetchmail:${TAG}
+            docker://docker.io/volkerraschek/postfixadmin-fetchmail:${TAG}

Dockerfile

@@ -1,4 +1,4 @@
-FROM docker.io/library/alpine:3.23.4
+FROM docker.io/library/alpine:3.23.3
 
 # The file /etc/apk/repositories contains a list of the apk repositories. By
 # default contains this file a list of the stable repositories pointing to the