Add own action for prereleases (#511)

Thought is to tag the prerelease with a beta tag on the registry

.github/workflows/npmpublish-beta.yml

@@ -0,0 +1,19 @@
+name: Publish Beta Package
+
+on:
+  release:
+    types: [prereleased]
+
+jobs:
+  publish-npm:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v2
+      - uses: actions/setup-node@v2
+        with:
+          node-version: '16'
+          registry-url: 'https://registry.npmjs.org/'
+      - run: npm ci
+      - run: npm run pub-beta
+        env:
+          NODE_AUTH_TOKEN: ${{secrets.npm_token}}

.github/workflows/npmpublish.yml

@@ -2,7 +2,7 @@ name: Publish Package
 
 on:
   release:
-    types: [created]
+    types: [released]
 
 jobs:
   publish-npm:

package.json

@@ -14,6 +14,7 @@
     "build": "rollup -c",
     "prepub": "npm run build",
     "pub": "npm publish --access=public",
+    "pub-beta": "npm publish --tag=beta --access=public",
     "lint": "eslint --ext .js,.jsx,.ts,.tsx src test",
     "test": "tsc --project tsconfig.test.json && jest",
     "test:watch": "jest --watchAll",