ci: build docker image also in testing step

.github/workflows/release.yml

@@ -10,4 +10,4 @@ jobs:
     steps:
       - uses: actions/checkout@v4
       - uses: cachix/install-nix-action@v27
-      - run: nix develop . -c task ci-publish --GITHUB_USERNAME ${{ github.actor }} --GITHUB_PASSWORD ${{ secrets.GITHUB_TOKEN }} --GIT_TAG ${{ github.ref_name }}
+      - run: nix develop . -c task ci-publish GITHUB_USERNAME=${{ github.actor }} GITHUB_PASSWORD=${{ secrets.GITHUB_TOKEN }} GIT_TAG=${{ github.ref_name }}

.github/workflows/test.yml

@@ -12,4 +12,4 @@ jobs:
     steps:
       - uses: actions/checkout@v4
       - uses: cachix/install-nix-action@v27
-      - run: nix develop . -c task ci -p
+      - run: nix develop . -c task --parallel ci

Taskfile.yml

@@ -6,14 +6,15 @@ tasks:
     cmds:
       - task: lint
       - task: test
+      - task: docker-inspect
 
   ci-publish:
     cmds:
       - task: lint
       - task: test
-      - task: docker
+      - task: docker-publish
 
-  docker:
+  docker-publish:
     requires:
       vars:
         - GITHUB_USERNAME
@@ -29,6 +30,14 @@ tasks:
         docker-archive://$(nix build .#docker --print-out-paths) \
         docker://ghcr.io/xsteadfastx/caddy-log-exporter:{{.GIT_TAG}}
 
+  docker-inspect:
+    cmds:
+      - |
+        {{.NIX_CMD_BASE}} \
+        skopeo \
+        inspect \
+        docker-archive://$(nix build .#docker --print-out-paths)
+
   lint:
     cmds:
       - |