Update docker/login-action action to v3

.forgejo/workflows/docker.yml

@@ -13,12 +13,12 @@ jobs:
       image: ghcr.io/catthehacker/ubuntu:act-latest
     steps:
       - name: Login to Docker Hub
-        uses: docker/login-action@v2
+        uses: docker/login-action@v3
         with:
           username: ${{ secrets.DOCKERHUB_USERNAME }}
           password: ${{ secrets.DOCKERHUB_TOKEN }}
       - name: Login to cr.sp-codes.de
-        uses: docker/login-action@v2
+        uses: docker/login-action@v3
         with:
           registry: cr.sp-codes.de
           username: ${{ secrets.CR_USERNAME }}

Dockerfile

@@ -1,3 +1,3 @@
-FROM nginx:1.27.4-alpine@sha256:b471bb609adc83f73c2d95148cf1bd683408739a3c09c0afc666ea2af0037aef
+FROM nginx:1.27.4-alpine@sha256:d2f9c9b28f804dab6728ff9af4067dcb16b3ab6b2b08642b66105a3768578910
 
 COPY nginx.conf /etc/nginx/nginx.conf