Update checkout and upload-artifact to v4 (#441)

Author: brichet

.github/workflows/check-release.yml

@@ -13,7 +13,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Checkout
-        uses: actions/checkout@v3
+        uses: actions/checkout@v4
 
       - name: Base Setup
         uses: jupyterlab/maintainer-tools/.github/actions/base-setup@v1
@@ -24,7 +24,7 @@ jobs:
           token: ${{ secrets.GITHUB_TOKEN }}
 
       - name: Upload Distributions
-        uses: actions/upload-artifact@v3
+        uses: actions/upload-artifact@v4
         with:
           name: jupyter-releaser-dist-${{ github.run_number }}
           path: |

.github/workflows/license-header.yml

@@ -13,7 +13,7 @@ jobs:
 
     steps:
       - name: Checkout
-        uses: actions/checkout@v3
+        uses: actions/checkout@v4
         with:
           token: ${{ secrets.GITHUB_TOKEN }}
 

.github/workflows/test.yml

@@ -145,7 +145,7 @@ jobs:
     timeout-minutes: 20
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v4
 
       - name: Base Setup
         uses: jupyterlab/maintainer-tools/.github/actions/base-setup@v1
@@ -298,7 +298,7 @@ jobs:
           TIMELINE_FEATURE=1 jlpm test:timeline
       - name: Upload Playwright Test report
         if: always()
-        uses: actions/upload-artifact@v3
+        uses: actions/upload-artifact@v4
         with:
           name: jupyter-collaboration-playwright-report
           path: |