ci: Only run FOSSA checks on the main repo (#20696)

.github/workflows/fossa.yml

@@ -10,17 +10,24 @@ jobs:
   fossa-check:
     name: Run FOSSA Analysis
     runs-on: ubuntu-latest
+    env:
+      FOSSA_API_KEY: ${{secrets.FOSSA_API_KEY}}
     steps:
+      - name: Ignore forks
+        run: |
+          if [ -z "$FOSSA_API_KEY" ]; then
+            echo "FOSSA_API_KEY is empty. Is the job running in a forked repository?"
+            exit 0
+          fi
       - uses: actions/checkout@v4
         with:
           ref: master
       - name: Install dependencies
         uses: bahmutov/npm-install@v1
       - name: Install fossa-cli
-        run: ./scripts/install-fossa.sh -d
+        run: |
+          curl -H 'Cache-Control: no-cache' https://raw.githubusercontent.com/fossas/fossa-cli/master/install-latest.sh | bash
       - name: Run FOSSA analysis
         run: |
           fossa analyze
           fossa test
-    env:
-      FOSSA_API_KEY: ${{secrets.FOSSA_API_KEY}}