ci: revert fossa token from secrets (#187)

Author: raffis

.github/workflows/scan.yaml

@@ -19,7 +19,8 @@ jobs:
       - name: Run FOSSA scan and upload build data
         uses: fossa-contrib/fossa-action@6728dc6fe9a068c648d080c33829ffbe56565023 # v2.0.0
         with:
-          fossa-api-key: ${{ secrets.FOSSA_API_KEY }}
+          # FOSSA Push-Only API Token
+          fossa-api-key: 956b9b92c5b16eeca1467cebe104f2c3
           github-token: ${{ github.token }}
 
   codeql: