[meld/pages] CI: Install pip for pages build

[Kai Willadsen <kaiw src gnome org>]

commit d685f7d395a7016275f26bda100361889cb9581c
Author: Kai Willadsen <kai willadsen gmail com>
Date:   Sun Sep 4 09:37:05 2022 +1000

    CI: Install pip for pages build

 .gitlab-ci.yml | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)
---
diff --git a/.gitlab-ci.yml b/.gitlab-ci.yml
index f9cff21b..5ceb21d5 100644
--- a/.gitlab-ci.yml
+++ b/.gitlab-ci.yml
@@ -3,7 +3,7 @@ stages:
   - publish
 
 variables:
-  DEPENDENCIES: findutils git libxslt rubygem-jekyll yelp-tools
+  DEPENDENCIES: findutils git libxslt python3-pip rubygem-jekyll yelp-tools
 
 pages:
   stage: deploy
@@ -12,7 +12,7 @@ pages:
     - dnf install -y $DEPENDENCIES
     - jekyll build -d public/
     - git checkout master
-    - pip install pintail
+    - pip3 install pintail
     - cd help/C/
     - pintail build -o ../../public/help/
   artifacts: