Prune i18n files (#8479)

* Prune i18n files

* Tweak i18n ci rule to ignore RiotTranslateBot

Author: t3chguy

.github/workflows/static_analysis.yaml

@@ -47,7 +47,7 @@ jobs:
 
       - name: "Get modified files"
         id: changed_files
-        if: github.event_name == 'pull_request'
+        if: github.event_name == 'pull_request' && github.actor != 'RiotTranslateBot'
         uses: tj-actions/changed-files@v19
         with:
           files: |
@@ -56,7 +56,10 @@ jobs:
             src/i18n/strings/en_EN.json
 
       - name: "Assert only en_EN was modified"
-        if: github.event_name == 'pull_request' && steps.changed_files.outputs.any_modified == 'true'
+        if: |
+          github.event_name == 'pull_request' &&
+          github.actor != 'RiotTranslateBot' &&
+          steps.changed_files.outputs.any_modified == 'true'
         run: |
           echo "You can only modify en_EN.json, do not touch any of the other i18n files as Weblate will be confused"
           exit 1