Update lots of CI steps & enable CI npm caching

Author: pimterry

.github/workflows/ci.yml

@@ -8,12 +8,13 @@ jobs:
     runs-on: ubuntu-latest
     container: httptoolkit/act-build-base:v2.0.0
     steps:
-      - uses: actions/checkout@v2
+      - uses: actions/checkout@v3
 
       # Install Node 16
-      - uses: actions/setup-node@v1
+      - uses: actions/setup-node@v3
         with:
           node-version: 16.16.0
+          cache: 'npm'
 
       - run: npm install -g [email protected]
 
@@ -38,7 +39,7 @@ jobs:
           SENTRY_PROJECT: httptoolkit-ui
           SENTRY_AUTH_TOKEN: ${{ secrets.SENTRY_AUTH_TOKEN }}
 
-      - uses: actions/upload-artifact@v2
+      - uses: actions/upload-artifact@v3
         with:
           name: dist
           path: dist/*
@@ -51,9 +52,9 @@ jobs:
     container: httptoolkit/act-build-base
     needs: build
     steps:
-      - uses: actions/checkout@v2
+      - uses: actions/checkout@v3
 
-      - uses: actions/download-artifact@v2
+      - uses: actions/download-artifact@v3
         with:
           name: dist
           path: dist
@@ -82,14 +83,14 @@ jobs:
     container: httptoolkit/act-build-base
     needs: build
     steps:
-      - uses: actions/checkout@v2
+      - uses: actions/checkout@v3
 
-      - uses: actions/download-artifact@v2
+      - uses: actions/download-artifact@v3
         with:
           name: dist
           path: dist
 
-      - uses: docker/setup-buildx-action@v1
+      - uses: docker/setup-buildx-action@v2
       - name: Login to DockerHub
         if: github.event_name != 'pull_request'
         uses: docker/login-action@v2
@@ -99,7 +100,7 @@ jobs:
 
       - name: Extract Docker metadata
         id: meta
-        uses: docker/metadata-action@v3
+        uses: docker/metadata-action@v4
         with:
           github-token: ${{ secrets.GITHUB_TOKEN }}
           images: httptoolkit/ui
@@ -109,7 +110,7 @@ jobs:
             type=sha
 
       - name: Publish to Docker Hub
-        uses: docker/build-push-action@v2
+        uses: docker/build-push-action@v4
         with:
           context: .
           push: ${{ github.event_name != 'pull_request' }}