[JAVA-13976] Upgrade Spring Boot to 2.7.2 (#12603)

* [JAVA-13976] Upgrade Spring Boot to 2.7.2

* [JAVA-13976] Fix failing test due to incorrect Jackson version

spring-boot-modules/spring-boot-libraries-2/src/main/java/com/baeldung/sprq/SpqrApp.java

@@ -0,0 +1,13 @@
+package com.baeldung.sprq;
+
+import org.springframework.boot.SpringApplication;
+import org.springframework.boot.autoconfigure.SpringBootApplication;
+
+@SpringBootApplication
+public class SpqrApp {
+
+    public static void main(String[] args) {
+        SpringApplication.run(SpqrApp.class, args);
+    }
+
+}