Fix GitHub actions deprecations (#520)

* Upgrade versions of github actions

See https://github.blog/changelog/2022-09-22-github-actions-all-actions-will-begin-running-on-node16-instead-of-node12/

* Update syntax of set-output directive

See https://github.blog/changelog/2022-10-11-github-actions-deprecating-save-state-and-set-output-commands/

.github/workflows/release.yml

@@ -11,22 +11,22 @@ jobs:
     runs-on: ubuntu-latest
 
     steps:
-      - uses: actions/checkout@v2
+      - uses: actions/checkout@v3
         with:
           fetch-depth: 0
 
       - name: Set up Python
-        uses: actions/setup-python@v2
+        uses: actions/setup-python@v3
         with:
           python-version: 3.8
 
       - name: Get pip cache dir
         id: pip-cache
         run: |
-          echo "::set-output name=dir::$(pip cache dir)"
+          echo "dir=$(pip cache dir)" >> $GITHUB_OUTPUT
 
       - name: Cache
-        uses: actions/cache@v2
+        uses: actions/cache@v3
         with:
           path: ${{ steps.pip-cache.outputs.dir }}
           key: release-${{ hashFiles('**/setup.py') }}

.github/workflows/test.yml

@@ -27,20 +27,20 @@ jobs:
           --health-retries 5
 
     steps:
-    - uses: actions/checkout@v2
+    - uses: actions/checkout@v3
 
     - name: Set up Python ${{ matrix.python-version }}
-      uses: actions/setup-python@v2
+      uses: actions/setup-python@v3
       with:
         python-version: ${{ matrix.python-version }}
 
     - name: Get pip cache dir
       id: pip-cache
       run: |
-        echo "::set-output name=dir::$(pip cache dir)"
+        echo "dir=$(pip cache dir)" >> $GITHUB_OUTPUT
 
     - name: Cache
-      uses: actions/cache@v2
+      uses: actions/cache@v3
       with:
         path: ${{ steps.pip-cache.outputs.dir }}
         key:
@@ -64,6 +64,6 @@ jobs:
         TEST_DB_PORT: ${{ job.services.postgres.ports[5432] }}
 
     - name: Upload coverage
-      uses: codecov/codecov-action@v1
+      uses: codecov/codecov-action@v3
       with:
         name: Python ${{ matrix.python-version }}