Update Quarkus from 3.30.2 to 3.30.3 and Java from 23 to 21

Co-authored-by: DerekRoberts <[email protected]>

Author: Copilot

.github/workflows/analysis.yml

@@ -68,7 +68,7 @@ jobs:
       - uses: actions/setup-java@v5
         with:
           distribution: "temurin"
-          java-version: "23"
+          java-version: "21"
       - name: Cache local Maven repository
         uses: actions/cache@v4
         with:

backend-java/README.md

@@ -5,7 +5,7 @@ This project uses Quarkus, the Supersonic Subatomic Java Framework.
 If you want to learn more about Quarkus, please visit its website: https://quarkus.io/ .
 
 ### Prerequisites
-- [x] Java 17 JDK
+- [x] Java 21 JDK
 - [x] Docker
 
 ## Running the application in dev mode

backend-java/pom.xml

@@ -7,12 +7,12 @@
   <version>1.0.0-SNAPSHOT</version>
   <properties>
     <compiler-plugin.version>3.14.1</compiler-plugin.version>
-    <maven.compiler.release>23</maven.compiler.release>
+    <maven.compiler.release>21</maven.compiler.release>
     <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
     <project.reporting.outputEncoding>UTF-8</project.reporting.outputEncoding>
     <quarkus.platform.artifact-id>quarkus-bom</quarkus.platform.artifact-id>
     <quarkus.platform.group-id>io.quarkus.platform</quarkus.platform.group-id>
-    <quarkus.platform.version>3.30.2</quarkus.platform.version>
+    <quarkus.platform.version>3.30.3</quarkus.platform.version>
     <skipITs>true</skipITs>
     <surefire-plugin.version>3.5.4</surefire-plugin.version>
   </properties>