Set compiler.source and compiler.target to javaVersion property without "1.x" prefix

Author: slachiewicz

pom.xml

@@ -335,8 +335,8 @@ limitations under the License.
 
   <properties>
     <javaVersion>8</javaVersion>
-    <maven.compiler.source>1.${javaVersion}</maven.compiler.source>
-    <maven.compiler.target>1.${javaVersion}</maven.compiler.target>
+    <maven.compiler.source>${javaVersion}</maven.compiler.source>
+    <maven.compiler.target>${javaVersion}</maven.compiler.target>
     <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
     <plexusDistMgmtSnapshotsUrl>https://oss.sonatype.org/content/repositories/plexus-snapshots</plexusDistMgmtSnapshotsUrl>
     <project.build.outputTimestamp>2023-05-22T15:02:18Z</project.build.outputTimestamp>