[Meta] Upgrade GitHub Actions to Node.js 24 compatible versions and add Dependabot

.github/dependabot.yml

@@ -0,0 +1,6 @@
+version: 2
+updates:
+  - package-ecosystem: "github-actions"
+    directory: "/"
+    schedule:
+      interval: "weekly"

.github/workflows/distro_image_build.yml

@@ -17,7 +17,7 @@ jobs:
     runs-on: 32-core-ubuntu
     steps:
       - name: Check out repository code
-        uses: actions/checkout@v5
+        uses: actions/checkout@v6
 
       - name: Run fboss-image build
         run: ./fboss-image/distro_cli/fboss-image build fboss-image/from_source.json

.github/workflows/fboss2-cli.yml

@@ -28,7 +28,7 @@ jobs:
       - name: Clean workspace
         run: sudo rm -rf ${{ github.workspace }}/*
       - name: Check out repository code
-        uses: actions/checkout@v4
+        uses: actions/checkout@v6
       - name: Run Docker-based build for fboss2 CLI
         run: >
           sudo
@@ -68,7 +68,7 @@ jobs:
       - name: Save Docker image
         run: sudo docker save fboss_image:latest | zstd -o ${{ github.workspace }}/build-output/fboss_docker_image.tar.zst
       - name: Upload build artifacts
-        uses: actions/upload-artifact@v4
+        uses: actions/upload-artifact@v6
         with:
           name: fboss2-cli
           path: |
@@ -82,9 +82,9 @@ jobs:
     needs: fboss2-CLI-Build
     steps:
       - name: Check out repository code
-        uses: actions/checkout@v4
+        uses: actions/checkout@v6
       - name: Download artifact with test binaries
-        uses: actions/download-artifact@v4
+        uses: actions/download-artifact@v7
         with:
           name: fboss2-cli
       - run: ls ${{ github.workspace }}

.github/workflows/github-pages-deploy.yml

@@ -30,7 +30,7 @@ jobs:
         run: yarn build
 
       - name: Upload Build Artifact
-        uses: actions/upload-pages-artifact@v3
+        uses: actions/upload-pages-artifact@v4
         with:
           path: docs/build