first attempt to use github workflows, it will replace appveyor when releasing versions.

Author: davidacm

.github/workflows/upload-on-tag.yaml

@@ -0,0 +1,46 @@
+name: Upload on new tags
+
+on:
+  push:
+    tags:
+      '*'
+
+jobs:
+  buildAndUpload:
+    runs-on: ubuntu-latest
+    steps:
+    - name: Checkout code
+      uses: actions/checkout@v2
+    - name: Set up Python 3.8
+      uses: actions/setup-python@v2
+      with:
+        python-version: 3.8
+    - name: Install dependencies
+      run: |
+        pip install scons markdown
+        sudo apt update
+        sudo apt install gettext
+    - name: Add add-on version
+      run: |
+        import re
+        with open("buildVars.py", 'r+', encoding='utf-8') as f:
+          text = f.read()
+          version = "${{ github.ref }}".split("/")[-1]
+          text = re.sub('"addon_version" *:.*,', '"addon_version" : "%s",' % version, text)
+          f.seek(0)
+          f.write(text)
+          f.truncate()
+      shell: python 
+    - name: Build add-on
+      run: scons
+    - name: Calculate sha256
+      run: sha256sum *.nvda-addon >> changelog.md
+    - name: Release
+      uses: softprops/action-gh-release@v1
+      env:
+        GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+      with:
+        files: |
+          *.nvda-addon
+        body_path: changelog.md
+        prerelease: ${{ endsWith(github.ref, '-dev') }}

appveyor.yml

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+fix security issue on secure screens. Updated support for NVDA 2022.