Update Maven Compiler Plugin to 3.11.0 and set Java 17 release target

[devin-ai-integration]

Summary

Updates the maven-compiler-plugin configuration in pom.xml:

• Plugin version: 3.6.0 → 3.11.0 (in <pluginManagement>)
• Compiler target: Replaces <source>1.6</source> / <target>1.6</target> with <release>17</release> (in <plugins> configuration)

The <release> flag (supported since maven-compiler-plugin 3.6+) sets source compatibility, target compatibility, and the bootstrap classpath in one option.

Review & Testing Checklist for Human

• Verify the project compiles successfully with Java 17 — this is a jump from Java 1.6 targeting, so source code and all dependencies (especially Dropwizard 1.0.5, Hibernate, Jersey) must be compatible
• Run the full test suite (mvn test) to confirm nothing breaks at compile or runtime under Java 17
• Confirm the runtime JDK used in CI and deployment environments is Java 17+, since the <release>17</release> flag requires it

Notes

This is a large compatibility jump (Java 1.6 → 17). While the pom.xml change itself is minimal, the downstream impact could be significant if any dependencies or source code rely on APIs removed or changed between Java 6 and 17. A successful mvn clean verify is the minimum bar before merging.

Link to Devin session: https://app.devin.ai/sessions/d8b20a9721304d2888778a921a61c350
Requested by: @WesternConcrete

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✅ Devin Review: No Issues Found

Devin Review analyzed this PR and found no potential bugs to report.

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