Update `actions/checkout` and `actions/download-artifact`

.github/workflows/build.yml

@@ -25,7 +25,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
     - name: Checkout
-      uses: actions/checkout@v2
+      uses: actions/checkout@v3
 
     - name: Build
       uses: ./.github/actions/build-dist
@@ -35,7 +35,7 @@ jobs:
     timeout-minutes: 10
     steps:
     - name: Checkout
-      uses: actions/checkout@v2
+      uses: actions/checkout@v3
 
     - name: Base Setup
       uses: jupyterlab/maintainer-tools/.github/actions/base-setup@v1
@@ -84,7 +84,7 @@ jobs:
         with:
           python-version: ${{ matrix.python }}
           architecture: 'x64'
-      - uses: actions/download-artifact@v2
+      - uses: actions/download-artifact@v3
         with:
           name: notebook-dist-${{ github.run_number }}
           path: ./dist
@@ -112,7 +112,7 @@ jobs:
     runs-on: ubuntu-latest
     timeout-minutes: 10
     steps:
-      - uses: actions/checkout@v2
+      - uses: actions/checkout@v3
       - uses: jupyterlab/maintainer-tools/.github/actions/base-setup@v1
       - uses: jupyterlab/maintainer-tools/.github/actions/check-links@v1
         with:
@@ -122,7 +122,7 @@ jobs:
     runs-on: ubuntu-latest
     timeout-minutes: 10
     steps:
-      - uses: actions/checkout@v2
+      - uses: actions/checkout@v3
       - uses: jupyterlab/maintainer-tools/.github/actions/base-setup@v1
       - run: pip install -e .
       - uses: jupyterlab/maintainer-tools/.github/actions/pre-commit@v1

.github/workflows/buildutils.yml

@@ -19,7 +19,7 @@ jobs:
     timeout-minutes: 10
     steps:
     - name: Checkout
-      uses: actions/checkout@v2
+      uses: actions/checkout@v3
 
     - name: Base Setup
       uses: jupyterlab/maintainer-tools/.github/actions/base-setup@v1
@@ -66,7 +66,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
     - name: Checkout
-      uses: actions/checkout@v2
+      uses: actions/checkout@v3
 
     - name: Install Python
       uses: actions/setup-python@v4

.github/workflows/check-release.yml

@@ -18,7 +18,7 @@ jobs:
     timeout-minutes: 30
     steps:
       - name: Checkout
-        uses: actions/checkout@v2
+        uses: actions/checkout@v3
       - name: Base Setup
         uses: jupyterlab/maintainer-tools/.github/actions/base-setup@v1
       - name: Install Dependencies

.github/workflows/docs.yml

@@ -14,7 +14,7 @@ jobs:
     timeout-minutes: 10
     steps:
     - name: Checkout
-      uses: actions/checkout@v2
+      uses: actions/checkout@v3
     - name: Base Setup
       uses: jupyterlab/maintainer-tools/.github/actions/base-setup@v1
       with:

.github/workflows/ui-tests.yml

@@ -16,7 +16,7 @@ jobs:
 
     steps:
       - name: Checkout
-        uses: actions/checkout@v2
+        uses: actions/checkout@v3
 
       - name: Build
         uses: ./.github/actions/build-dist
@@ -31,12 +31,12 @@ jobs:
         browser: [firefox, chromium]
     steps:
       - name: Checkout
-        uses: actions/checkout@v2
+        uses: actions/checkout@v3
 
       - name: Base Setup
         uses: jupyterlab/maintainer-tools/.github/actions/base-setup@v1
 
-      - uses: actions/download-artifact@v2
+      - uses: actions/download-artifact@v3
         with:
           name: notebook-dist-${{ github.run_number }}
           path: ./dist