Set up locale env variables (#14)

Setting those variables fixes the issue that sonar has with non-asci chars in filenames

Co-authored-by: Tom <tom.vanbraband@sonarsource.com>

Dockerfile

@@ -14,6 +14,9 @@ ARG NODEJS_HOME=/opt/nodejs
 
 ENV PATH=${PATH}:${SONAR_SCANNER_HOME}/bin:${NODEJS_HOME}/bin
 
+# set up local envs in order to allow for special chars (non-asci) in filenames
+ENV LC_ALL="C.UTF-8"
+
 WORKDIR /opt
 
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