Fix CVEs brought in by accidental spring boot version override

We accidentally masked the parent definition of spring-boot version and
in doing so pin older dependencies than we meant to. This was detected
by `trivy repo .`.

Signed-off-by: Adrian Cole <[email protected]>

Author: codefromthecrypt

spring-aot/pom.xml

@@ -13,7 +13,6 @@
         <relativePath>../pom.xml</relativePath>
     </parent>
     <properties>
-        <spring.boot.version>3.0.0</spring.boot.version>
         <!-- Spring Boot 3.x is minimum JRE 17 -->
         <java.version>17</java.version>
     </properties>