Add auto-version query step and push Docker master tag on every build (#701)

The Docker build/push steps referenced steps.auto-version.outputs.version
but no step with id auto-version existed, so Docker images were never
built. Add the auto-version query step (as in heudiconv) so releases
actually trigger Docker pushes. Also restructure so the master tag is
built and pushed on every push to master, while latest and version tags
are only pushed on actual releases.

Co-authored-by: Claude Opus 4.6 <noreply@anthropic.com>

Author: yarikoptic

.github/workflows/release.yml

@@ -40,26 +40,39 @@ jobs:
                 wget -O- "$auto_download_url" | gunzip > ~/auto
                 chmod a+x ~/auto
 
-        -   name: Create release
+        -   name: Query 'auto' on type of the release
+            id: auto-version
             run: |
-                ~/auto shipit -vv
+                set -o pipefail
+                ~/auto version -vv | tee /tmp/auto-version
+                version="$(sed -ne '/Calculated SEMVER bump:/s,.*: *,,p' /tmp/auto-version)"
+                echo "version=$version" >> "$GITHUB_OUTPUT"
             env:
                 GH_TOKEN: ${{ secrets.AUTO_USER_TOKEN }}
 
-        -   name: Build Docker images
+        -   name: Create release
             if: steps.auto-version.outputs.version != ''
             run: |
-                docker build \
-                  -t repronim/neurodocker:master \
-                  -t repronim/neurodocker:latest \
-                  -t repronim/neurodocker:"$(git describe | sed -e 's,^v,,g')" \
-                  .
+                ~/auto shipit -vv
+            env:
+                GH_TOKEN: ${{ secrets.AUTO_USER_TOKEN }}
 
-        -   name: Push Docker images
-            if: steps.auto-version.outputs.version != ''
+        -   name: Login to Docker Hub
             run: |
                 docker login -u "$DOCKER_LOGIN" --password-stdin <<<"$DOCKER_TOKEN"
-                docker push --all-tags repronim/neurodocker
             env:
                 DOCKER_LOGIN: ${{ secrets.DOCKER_LOGIN }}
                 DOCKER_TOKEN: ${{ secrets.DOCKER_TOKEN }}
+
+        -   name: Build and push master Docker image
+            run: |
+                docker build -t repronim/neurodocker:master .
+                docker push repronim/neurodocker:master
+
+        -   name: Build and push release Docker images
+            if: steps.auto-version.outputs.version != ''
+            run: |
+                docker tag repronim/neurodocker:master repronim/neurodocker:latest
+                docker tag repronim/neurodocker:master repronim/neurodocker:"$(git describe | sed -e 's,^v,,g')"
+                docker push repronim/neurodocker:latest
+                docker push repronim/neurodocker:"$(git describe | sed -e 's,^v,,g')"