Removed release_version and use github.ref_name in tag env

.github/workflows/openvex.yaml

@@ -1,35 +1,27 @@
 on:
   workflow_dispatch:
-    inputs:
-      tag:
-        type: string
-        required: true
-        description: "GitHub release tag"
+  push:
+    tags:
+      - 'v*.*.*'
 
-permissions: {}
 
 jobs:
   vexctl:
-    permissions:
-      contents: write
     runs-on: ubuntu-latest
     steps:
       - name: Checkout code
         uses: actions/checkout@v2
-      - name: Set env
-        run: echo "RELEASE_VERSION=${GITHUB_REF#refs/*/}" >> $GITHUB_ENV
       - name: Set tag name
         shell: bash
         run: |
-          TAG=${{ github.event.inputs.tag }}
-          echo "TAG=$TAG" >> "$GITHUB_ENV"
+          echo "TAG=${ github.ref_name }" >> "$GITHUB_ENV"
       - uses: openvex/generate-vex@31b415924ea0d72ed5f2640f1dee59dea6c2770b
         name: Run vexctl
         with:
-          product: pkg:generic/karpenter@${{ env.RELEASE_VERSION }}
+          product: pkg:generic/karpenter@${{ env.TAG }}
           file: /tmp/karpenter.vex.json
       - name: Upload openvex data
         env:
           GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
         run: |
-          gh release upload $TAG /tmp/karpenter.vex.json
+          gh release upload ${{ env.TAG }} /tmp/karpenter.vex.json