chore(github actions): Fix action to trigger release manually

Author: burtek

.github/workflows/trigger-release.yml

@@ -31,12 +31,8 @@ jobs:
         run: |
           git config --local user.email "github-actions[bot]@users.noreply.github.com"
           git config --local user.name "github-actions[bot]"
-      - name: 'Create release'
-        if: ${{ !github.event.inputs.alpha }}
-        run: yarn release
-      - name: 'Create alpha release'
-        if: ${{ github.event.inputs.alpha }}
-        run: yarn release:alpha
+      - name: ${{ github.event.inputs.alpha == 'true' && 'Create alpha release' || 'Create release' }}
+        run: yarn ${{ github.event.inputs.alpha == 'true' && 'release:alpha' || 'release' }}
       - name: 'Push release'
         uses: ad-m/github-push-action@master
         with: