chore(deps): bump hilla.version from 24.4.0.alpha2 to 24.4.0.alpha3

Bumps `hilla.version` from 24.4.0.alpha2 to 24.4.0.alpha3.

Updates `com.vaadin.hilla:hilla-bom` from 24.4.0.alpha2 to 24.4.0.alpha3

Updates `com.vaadin.hilla:hilla-maven-plugin` from 24.4.0.alpha2 to 24.4.0.alpha3

Updates `com.vaadin.hilla:plugin-base` from 24.4.0.alpha2 to 24.4.0.alpha3

---
updated-dependencies:
- dependency-name: com.vaadin.hilla:hilla-bom
  dependency-type: direct:production
  update-type: version-update:semver-patch
- dependency-name: com.vaadin.hilla:hilla-maven-plugin
  dependency-type: direct:production
  update-type: version-update:semver-patch
- dependency-name: com.vaadin.hilla:plugin-base
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

Signed-off-by: dependabot[bot] <[email protected]>

pom.xml

@@ -43,7 +43,7 @@
         <project.reporting.outputEncoding>UTF-8</project.reporting.outputEncoding>
 
         <quarkus.version>3.7.2</quarkus.version>
-        <hilla.version>24.4.0.alpha2</hilla.version>
+        <hilla.version>24.4.0.alpha3</hilla.version>
 
         <assertj.version>3.25.3</assertj.version>