chore(deps): bump quarkus.platform.version from 3.19.3 to 3.21.0

Bumps `quarkus.platform.version` from 3.19.3 to 3.21.0.

Updates `io.quarkus:quarkus-bom` from 3.19.3 to 3.21.0
- [Release notes](https://github.com/quarkusio/quarkus/releases)
- [Commits](quarkusio/quarkus@3.19.3...3.21.0)

Updates `io.quarkus:quarkus-maven-plugin` from 3.19.3 to 3.21.0

---
updated-dependencies:
- dependency-name: io.quarkus:quarkus-bom
  dependency-type: direct:production
  update-type: version-update:semver-minor
- dependency-name: io.quarkus:quarkus-maven-plugin
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

Signed-off-by: dependabot[bot] <support@github.com>

Author: dependabot[bot]

pom.xml

@@ -47,7 +47,7 @@
         <skipITs>true</skipITs>
         <format.skip>false</format.skip>
 
-        <quarkus.platform.version>3.19.3</quarkus.platform.version>
+        <quarkus.platform.version>3.21.0</quarkus.platform.version>
         <assertj.version>3.27.3</assertj.version>
 
         <maven-surefire-plugin.version>3.5.2</maven-surefire-plugin.version>