fix(release): re-use alpine version again

.github/workflows/release.yaml

@@ -13,25 +13,23 @@ jobs:
     - 
       uses: actions/[email protected]
     - 
-      uses: go-semantic-release/action@v1
-      id: version
-      with:
-        github-token: ${{ secrets.GITHUB_TOKEN }}
-    - 
-      run: echo "Pushing version ${{ steps.version.outputs.version }}"
+      id: vars
+      run: |
+        echo ::set-output name=alpine_version::$(grep '^FROM alpine' Dockerfile | cut -d ' ' -f 2 | cut -d ':' -f 2)
+        echo "Using alpine version ${{ steps.vars.outputs.alpine_version }}"
     - 
       name: Publish to Registry
       uses: elgohr/[email protected]
       with:
         registry: ghcr.io
-        name: "ghcr.io/ironpeakservices/iron-alpine:${{ steps.version.outputs.version }}"
+        name: "ghcr.io/ironpeakservices/iron-alpine:${{ steps.vars.outputs.alpine_version }}"
         username: hazcod
         password: ${{ secrets.PACKAGE_TOKEN }}
     - 
       name: Create GitHub release
       uses: actions/[email protected]
       with:
-          tag_name: ${{ steps.version.outputs.version }}
+          tag_name: ${{ steps.vars.outputs.alpine_version }}
           release_name: iron-alpine
           draft: false
           prerelease: false