fix(ci): Fix syntax error

Author: neithanmo

.github/workflows/license_headers_check.yml

@@ -37,5 +37,5 @@ jobs:
             -ignore '*.toml' \
             -ignore '*.yml' \
             -ignore '*.yaml' \
-            -ignore 'rav_e2e/*.sh'
+            -ignore 'rav_e2e/*.sh' \
             .