Revert "Merge pull request #292 from elimu-ai/dependabot/maven/org.ap…

…ache.maven.plugins-maven-compiler-plugin-3.13.0"

This reverts commit 1cc7642, reversing
changes made to 81c820a.

pom.xml

@@ -46,7 +46,7 @@
             <plugin>
             	<groupId>org.apache.maven.plugins</groupId>
                 <artifactId>maven-compiler-plugin</artifactId>
-                <version>3.13.0</version>
+                <version>3.12.1</version>
                 <configuration>
                     <source>${java.version}</source>
                     <target>${java.version}</target>