feat: Add diracx repo choice in the integration test

Author: Robin-Van-de-Merghel

integration_tests.py

@@ -716,6 +716,8 @@ def _make_env(flags):
     if "CVMFS_DIR" not in env or not Path(env["CVMFS_DIR"]).is_dir():
         typer.secho(f"CVMFS_DIR environment value: {env.get('CVMFS_DIR', 'NOT SET')}", fg=c.YELLOW)
         env["CVMFS_DIR"] = "/tmp"
+    env["DIRACX_REPO"] = flags.pop("DIRACX_REPO", "")
+    env["DIRACX_BRANCH"] = flags.pop("DIRACX_BRANCH", "")
     return env