set locale for consistent results

Author: memo33

.github/workflows/scala.yml

@@ -14,6 +14,8 @@ on:
 permissions:
   contents: read
 
+env:
+  LANG: "en_US.UTF-8"
 jobs:
   build:
     runs-on: ubuntu-latest
@@ -34,6 +36,10 @@ jobs:
     runs-on: ubuntu-latest
     steps:
     - uses: actions/checkout@v3
+    - name: en_US.UTF-8
+      run: |
+        sudo locale-gen en_US.UTF-8
+        sudo update-locale LANG=en_US.UTF-8
     - name: Check PO/POT syntax
       run: sh src/scripts/syntax-check-po.sh
     - name: Check RUL2 syntax