Parameter optimize is deprecated

[nya-elimu]

[WARNING]  * org.apache.maven.plugins:maven-compiler-plugin:3.11.0
[WARNING]   Declared at location(s):
[WARNING]    * ai.elimu:webapp:2.4.25-SNAPSHOT (pom.xml) @ line 24
[WARNING]   Used in module(s):
[WARNING]    * ai.elimu:webapp:2.4.25-SNAPSHOT (pom.xml)
[WARNING]   Mojo issue(s):
[WARNING]    * Mojo compiler:compile (org.apache.maven.plugin.compiler.CompilerMojo)
[WARNING]      - Parameter 'optimize' (user property 'maven.compiler.optimize') is deprecated: This property is a no-op in javac.