ci: Clear dependencies for dist-job

Otherwise it never executes, because it’s waiting patiently for zero
dependencies to complete. 🤦

Signed-off-by: Philip Withnall <pwithnall@gnome.org>

.gitlab-ci.yml

@@ -853,6 +853,7 @@ dist-job:
     - .with-git
   image: "${FEDORA_IMAGE}"
   stage: build
+  needs: []
   before_script:
     - !reference [".build-linux", "before_script"]
     - !reference [".with-git", "before_script"]