github: Fix permissions for static analysis check

Signed-off-by: Julian Pelizäus <[email protected]>

.github/workflows/tests.yml

@@ -161,6 +161,7 @@ jobs:
           sudo chmod o+w ./lxd/metadata/configuration.json
           sudo chmod o+w ./doc/config_options.txt
           sudo chmod o+w ./lxd/auth/entity/
+          sudo chmod o+w ./po/*
           make static-analysis
 
       - name: Unit tests (all)