adds autorelease gh action (closes #99)

.github/workflows/autorelease.yml

@@ -0,0 +1,36 @@
+name: 🔖 Auto release gh action
+
+on:
+  workflow_dispatch:
+  schedule:
+    - cron: '0 0 * * 0'
+
+jobs:
+  build:
+    runs-on: ubuntu-latest
+    steps:
+      - name: Check out code
+        uses: actions/checkout@v3
+        with:
+          fetch-depth: 0
+
+      - name: Get Commit Count
+        id: get_commit
+        run: git rev-list  `git rev-list --tags --no-walk --max-count=1`..HEAD --count | xargs -I {} echo COMMIT_COUNT={} >> $GITHUB_OUTPUT
+
+      - name: Create release and tag
+        if: ${{ steps.get_commit.outputs.COMMIT_COUNT > 0  }}
+        id: tag_version
+        uses: mathieudutour/github-tag-action@v6.1
+        with:
+          github_token: ${{ secrets.GITHUB_TOKEN }}
+
+      - name: Create a GitHub release
+        if: ${{ steps.get_commit.outputs.COMMIT_COUNT > 0  }}
+        uses: actions/create-release@v1
+        env:
+          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+        with:
+          tag_name: ${{ steps.tag_version.outputs.new_tag }}
+          release_name: Release ${{ steps.tag_version.outputs.new_tag }}
+          body: ${{ steps.tag_version.outputs.changelog }}