ci: bump checkout/setup-node/upload-artifact to v7 (drop Node 20) (#2)

Author: erubboli

.github/workflows/build.yml

@@ -15,9 +15,9 @@ jobs:
         working-directory: app
 
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v7
 
-      - uses: actions/setup-node@v4
+      - uses: actions/setup-node@v7
         with:
           node-version: '22'
           cache: 'npm'
@@ -34,7 +34,7 @@ jobs:
 
       - name: Upload coverage report
         if: always()
-        uses: actions/upload-artifact@v4
+        uses: actions/upload-artifact@v7
         with:
           name: coverage
           path: app/coverage/
@@ -48,7 +48,7 @@ jobs:
       contents: write  # needed to create GitHub Releases
 
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v7
 
       - name: Verify tag matches package.json version
         if: startsWith(github.ref, 'refs/tags/')
@@ -104,7 +104,7 @@ jobs:
           tar czf mintlayer-gui.tar.gz mintlayer-gui/
 
       - name: Upload artifact
-        uses: actions/upload-artifact@v4
+        uses: actions/upload-artifact@v7
         with:
           name: mintlayer-gui
           path: mintlayer-gui.tar.gz
@@ -128,7 +128,7 @@ jobs:
       url: ${{ steps.deploy.outputs.page_url }}
 
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v7
 
       - name: Prepare Pages content
         run: |