Update GitHub Actions per deprecation notice

Node.js 12 actions are deprecated. Please update the following actions to use Node.js 16: actions/checkout@v2, actions/setup-python@v1. For more information see: https://github.blog/changelog/2022-09-22-github-actions-all-actions-will-begin-running-on-node16-instead-of-node12/.

Node.js 12 actions are deprecated. Please update the following actions to use Node.js 16: docker/setup-qemu-action@v1. For more information see: https://github.blog/changelog/2022-09-22-github-actions-all-actions-will-begin-running-on-node16-instead-of-node12/.

.github/workflows/docs.yml

@@ -6,9 +6,9 @@ jobs:
   docs:
     runs-on: ubuntu-latest
     steps:
-    - uses: actions/checkout@v2
+    - uses: actions/checkout@v3
     - name: Set up Python 3.8
-      uses: actions/setup-python@v1
+      uses: actions/setup-python@v4
       with:
         python-version: 3.8
     - name: Install dependencies

.github/workflows/manylinux2014.yml

@@ -15,10 +15,10 @@ jobs:
       env:
         py: /opt/python/${{ matrix.python-version }}/bin/python
       steps:
-      - uses: actions/checkout@v1
+      - uses: actions/checkout@v3
       - name: Set up QEMU
         id: qemu
-        uses: docker/setup-qemu-action@v1
+        uses: docker/setup-qemu-action@v2
       - name: Building pycapnp and packaging
         run: |
           docker run --rm -v ${{ github.workspace }}:/ws:rw --workdir=/ws \

.github/workflows/packagingtest.yml

@@ -33,9 +33,9 @@ jobs:
             arch: arm64
 
     steps:
-    - uses: actions/checkout@v2
+    - uses: actions/checkout@v3
     - name: Set up Python ${{ matrix.python-version }}
-      uses: actions/setup-python@v1
+      uses: actions/setup-python@v4
       with:
         python-version: ${{ matrix.python-version }}
     - name: Install dependencies