Add maven parameter for encoding

Author: pnatashap

.github/workflows/mvn.yml

@@ -1,5 +1,7 @@
 ---
 name: mvn
+env:
+  MAVEN_OPTS: "-Dfile.encoding=UTF-8"
 on:
   push:
     branches:

qulice-pmd/pom.xml

@@ -39,9 +39,6 @@ OF THE POSSIBILITY OF SUCH DAMAGE.
   <artifactId>qulice-pmd</artifactId>
   <packaging>jar</packaging>
   <name>qulice-pmd</name>
-  <properties>
-    <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
-  </properties>
   <dependencies>
     <dependency>
       <groupId>com.qulice</groupId>