JAVA-39495 spring-threads: upgrade from spring 5 to spring 6 (conti-1) (#17609)

Co-authored-by: timis1 <[email protected]>

Author: timis1

spring-threads/pom.xml

@@ -10,9 +10,9 @@
 
     <parent>
         <groupId>com.baeldung</groupId>
-        <artifactId>parent-spring-5</artifactId>
+        <artifactId>parent-spring-6</artifactId>
         <version>0.0.1-SNAPSHOT</version>
-        <relativePath>../parent-spring-5</relativePath>
+        <relativePath>../parent-spring-6</relativePath>
     </parent>
 
     <dependencies>