fixup! gitlab-ci.yml: Add linux without brwap/ostree to ensure tests behave

.gitlab-ci.yml

@@ -139,8 +139,10 @@ tests-fedora-missing-deps:
     - dnf mark install fuse-libs
     - dnf erase -y bubblewrap ostree
 
-    # Since the unix platform is required to run as root, no user change required
-    - ${TEST_COMMAND}
+    - useradd -Um buildstream
+    - chown -R buildstream:buildstream .
+
+    - su buildstream -c "${TEST_COMMAND}"
 
 # Automatically build documentation for every commit, we want to know
 # if building documentation fails even if we're not deploying it.