Simplify beta release action.

Author: marc0der

.github/workflows/beta.yml

@@ -12,20 +12,17 @@ jobs:
       - uses: actions/checkout@v2
       - name: Run tests
         run: ./gradlew clean test --info
-      - name: Set github tag
-        id: github
-        run: echo ::set-output name=tag::${GITHUB_REF#refs/*/}
       - name: Set short git hash
-        id: git
+        id: var
         run: echo "::set-output name=sha_short::$(git rev-parse --short HEAD)"
       - name: Build artifacts
-        run: ./gradlew -Penv=production -Prelease=${{ steps.github.outputs.tag }} -Phash=${{ steps.git.outputs.sha_short }} clean assemble
+        run: ./gradlew -Penv=production -Phash=${{ steps.var.outputs.sha_short }} clean assemble
       - name: Release
         uses: "marvinpinto/action-automatic-releases@latest"
         with:
           repo_token: "${{ secrets.GITHUB_TOKEN }}"
           automatic_release_tag: "latest"
           prerelease: true
-          title: "Development Build"
+          title: "Beta release"
           files: |
             build/distributions/sdkman-cli-*.zip