[meld] CI: Install pip for requirement handling

[Kai Willadsen <kaiw src gnome org>]

commit 5243da35dd56367052d484ab99708c6c78f9e719
Author: Kai Willadsen <kai willadsen gmail com>
Date:   Sat Aug 6 14:24:56 2022 +1000

    CI: Install pip for requirement handling

 .gitlab-ci.yml | 1 +
 1 file changed, 1 insertion(+)
---
diff --git a/.gitlab-ci.yml b/.gitlab-ci.yml
index 91e44020..fe5fd982 100644
--- a/.gitlab-ci.yml
+++ b/.gitlab-ci.yml
@@ -31,6 +31,7 @@ nightly:
   stage: check
   image: registry.fedoraproject.org/fedora:latest
   script:
+   - dnf install -y python3-pip
    - pip3 install --user -r dev-requirements.txt
    - $PYTHON_CHECK_COMMAND