ci(post-release): workflow for new major versions

.github/workflows/post-major-release.yml

@@ -0,0 +1,28 @@
+---
+on:
+  push:
+    tags:
+      - v[0-9]+.0.0
+name: post-major-release
+jobs:
+  main:
+    name: create major version pointer
+    runs-on: ubuntu-latest
+    steps:
+      - name: Get version prefix
+        run: |
+          GIT_REF=${{ github.ref }}
+          echo "::set-env name=VERSION_PREFIX::${GIT_REF:10:2}"
+
+      - name: Checkout new release
+        uses: actions/checkout@v2
+
+      - name: Create branch for pointer
+        run: |
+          git branch $VERSION_PREFIX
+          git push --set-upstream origin $VERSION_PREFIX
+        env:
+          GIT_AUTHOR_NAME: ${{ github.actor }}
+          GIT_AUTHOR_EMAIL: ${{ github.actor }}@users.noreply.github.com
+          GIT_COMMITTER_NAME: ${{ github.actor }}
+          GIT_COMMITTER_EMAIL: ${{ github.actor }}@users.noreply.github.com

.github/workflows/post-release.yml

@@ -2,7 +2,8 @@
 on:
   push:
     tags:
-      - v[0-9]+.[0-9]+.[0-9]+**
+      - 'v[0-9]+.[0-9]+.[0-9]+'
+      - '!v[0-9]+.0.0'
 name: post-release
 jobs:
   main: