fix: pom.xml to reduce vulnerabilities

The following vulnerabilities are fixed with an upgrade:
- https://snyk.io/vuln/SNYK-JAVA-COMFASTERXMLJACKSONCORE-7569538

pom.xml

@@ -1,4 +1,4 @@
-<?xml version="1.0" encoding="UTF-8" ?>
+<?xml version="1.0" encoding="UTF-8"?>
 <project xmlns="http://maven.apache.org/POM/4.0.0"
 	xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 https://maven.apache.org/xsd/maven-4.0.0.xsd">
 	<modelVersion>4.0.0</modelVersion>
@@ -7,7 +7,7 @@
 		<groupId>org.springframework.boot</groupId>
 		<artifactId>spring-boot-starter-parent</artifactId>
 		<version>2.7.12</version>
-		<relativePath />
+		<relativePath/>
 		<!-- lookup parent from repository -->
 	</parent>
 
@@ -51,7 +51,7 @@
 
 	<properties>
 		<java.version>8</java.version>
-		<jackson.version>2.14.2</jackson.version>
+		<jackson.version>2.15.0</jackson.version>
 		<spring.version>6.0.19</spring.version>
 		<pmd.version>6.55.0</pmd.version>
 	</properties>