More manipulations with gh runner user

.github/workflows/ci.yml

@@ -164,6 +164,8 @@ jobs:
         run: |
           echo ${{ secrets.DOCKER_TOKEN }} | docker login ghcr.io -u ${{ secrets.DOCKER_USERNAME }} --password-stdin
           # We start the container with the user ID of the parent GH action user to avoid permission issues on volume.
+          sudo useradd -m -u 1001 -g 1000 gh-runner
+          sudo -u gh-runner
           # For UE 5.4 we have to enable ipv6 to fix container startup issues. See https://github.com/adamrehn/ue4-docker/issues/357
           uid=$(id -u) # the GH action user ID
           gid=1000     # the ue4 group in the docker container