Pause automatic translation updates

.github/workflows/update-translations.yml

@@ -6,13 +6,7 @@
 name: Update translations
 
 on:  # yamllint disable-line rule:truthy
-  push:
-    branches:
-      - master
-    paths:  # See include_patterns on conf.py
-      - 'docs/*.md'
-      - 'i18n/README.md'
-      - '*.md'
+  workflow_dispatch:
 
 permissions:
   contents: write