Bump maven-model from 2.2.1 to 3.6.3

Bumps [maven-model](https://github.com/apache/maven) from 2.2.1 to 3.6.3.
- [Release notes](https://github.com/apache/maven/releases)
- [Commits](https://github.com/apache/maven/compare/maven-2.2.1...maven-3.6.3)

Signed-off-by: dependabot-preview[bot] <support@dependabot.com>

pom.xml

@@ -36,7 +36,7 @@
 		<hibernate-validator.version>5.4.1.Final</hibernate-validator.version>
 		<org.eclipse.jgit-version>5.1.3.201810200350-r</org.eclipse.jgit-version>
 		<!-- Versions plugin uses this version -->
-		<maven-model.version>2.2.1</maven-model.version>
+		<maven-model.version>3.6.3</maven-model.version>
 		<versions-maven-plugin.version>2.3</versions-maven-plugin.version>
 		<handlebars.version>4.0.6</handlebars.version>
 		<initializr-metadata.version>0.8.0.BUILD-SNAPSHOT</initializr-metadata.version>

spring-cloud-info/pom.xml

@@ -15,7 +15,7 @@
 	<properties>
 		<maven-core.version>3.6.1</maven-core.version>
 		<javax.json-api.version>1.1.4</javax.json-api.version>
-		<maven-model.version>3.6.1</maven-model.version>
+		<maven-model.version>3.6.3</maven-model.version>
 		<scs.version>2.1.2.RELEASE</scs.version>
 		<spring-cloud-bom.version>Greenwich.RELEASE</spring-cloud-bom.version>
 		<spring-rest-docs.version>2.0.3.RELEASE</spring-rest-docs.version>