backport cce8975 (#777)

.github/workflows/main.yml

@@ -43,7 +43,7 @@ jobs:
 
     steps:
       - name: Check out the repository
-        uses: actions/checkout@v2
+        uses: actions/checkout@v3
         with:
           persist-credentials: false
 
@@ -85,7 +85,7 @@ jobs:
 
     steps:
       - name: Check out the repository
-        uses: actions/checkout@v2
+        uses: actions/checkout@v3
 
       - name: Set up Python ${{ matrix.python-version }}
         uses: actions/setup-python@v4.3.0
@@ -105,9 +105,9 @@ jobs:
       - name: Get current date
         if: always()
         id: date
-        run: echo "::set-output name=date::$(date +'%Y-%m-%dT%H_%M_%S')" #no colons allowed for artifacts
+        run: echo "date=$(date +'%Y-%m-%dT%H_%M_%S')" >> $GITHUB_OUTPUT #no colons allowed for artifacts
 
-      - uses: actions/upload-artifact@v2
+      - uses: actions/upload-artifact@v3
         if: always()
         with:
           name: unit_results_${{ matrix.python-version }}-${{ steps.date.outputs.date }}.csv
@@ -123,7 +123,7 @@ jobs:
 
     steps:
       - name: Check out the repository
-        uses: actions/checkout@v2
+        uses: actions/checkout@v3
 
       - name: Set up Python
         uses: actions/setup-python@v4.3.0
@@ -154,9 +154,9 @@ jobs:
         run: |
           export is_alpha=0
           if [[ "$(ls -lh dist/)" == *"a1"* ]]; then export is_alpha=1; fi
-          echo "::set-output name=is_alpha::$is_alpha"
+          echo "is_alpha=$is_alpha" >> $GITHUB_OUTPUT
 
-      - uses: actions/upload-artifact@v2
+      - uses: actions/upload-artifact@v3
         with:
           name: dist
           path: dist/
@@ -187,7 +187,7 @@ jobs:
           python -m pip install --user --upgrade pip
           python -m pip install --upgrade wheel
           python -m pip --version
-      - uses: actions/download-artifact@v2
+      - uses: actions/download-artifact@v3
         with:
           name: dist
           path: dist/