Fix actions jobs permission error (#627)

Summary:

Actions jobs suddenly started having permission errors. Build would succeed and change permissions of repo folder, so package step would fail. This runs the package step from within the docker container so that it can have proper permissions to package build artifacts.

Differential Revision: D86137814

Author: KevinYakar

.github/workflows/platform-services.yml

@@ -37,10 +37,29 @@ jobs:
       - name: Package FBOSS binaries and library dependencies
         run: >
           sudo
-          ./fboss/oss/scripts/package-fboss.py
-          --scratch-path
-          ${{ github.workspace }}/build-output
+          docker
+          run
+          --replace
+          -v
+          ${{ github.workspace }}:/var/FBOSS/fboss:z
+          -v
+          ${{ github.workspace }}/build-output:/var/FBOSS/tmp_bld_dir:z
+          --cap-add=CAP_AUDIT_WRITE
+          --name
+          FBOSS_BUILD_CONTAINER
+          fboss_image:latest
+          bash
+          /var/FBOSS/fboss/fboss/oss/scripts/package-fboss.py
+          --copy-root-libs
+          --scratch-path=/var/FBOSS/tmp_bld_dir
           --compress
+      - name: Restore Repo Permissions
+        run: >
+          sudo
+          chmod
+          -R
+          a+rwx
+          ${{ github.workspace }}
       - name: Upload build artifacts
         uses: actions/upload-artifact@v4
         with: