Add get-tag job to release worklflow

.github/workflows/release.yaml

@@ -2,33 +2,42 @@
 name: Release
 on:
   workflow_call:
-    inputs:
-      tag:
-        type: string
-        required: true
     secrets:
       token:
         required: true
 jobs:
+  get-tag:
+    name: Get tag
+    runs-on: ubuntu-latest
+    outputs:
+      tag: ${{ steps.get-tag-step.outputs.tag }}
+    steps:
+      - name: Get tag
+        run: |
+          branch=${{github.event.workflow_run.head_branch}}
+          echo tag=${branch#release/} >> $GITHUB_OUTPUT
+        id: get-tag-step
+
   create-release:
     name: Create release
+    needs: get-tag
     runs-on: ubuntu-latest
     steps:
       - name: Checkout repository
         uses: actions/checkout@v2
         with:
           ref: refs/heads/${{github.event.workflow_run.head_branch}}
-      - name: Push tag ${{ inputs.tag }}
+      - name: Push tag ${{ needs.get-tag.outputs.tag }}
         run: |
           git status
-          git tag ${{ inputs.tag }}
-          git push origin ${{ inputs.tag }} -f
-      - name: Create release ${{ inputs.tag }}
+          git tag ${{ needs.get-tag.outputs.tag }}
+          git push origin ${{ needs.get-tag.outputs.tag }} -f
+      - name: Create release ${{ needs.get-tag.outputs.tag }}
         uses: actions/create-release@v1
         env:
           GITHUB_TOKEN: ${{ secrets.token }}
         with:
-          tag_name: refs/tags/${{ inputs.tag }}
-          release_name: ${{ inputs.tag }}
+          tag_name: refs/tags/${{ needs.get-tag.outputs.tag }}
+          release_name: ${{ needs.get-tag.outputs.tag }}
           draft: false
           prerelease: false