Bump maven-resolver.version from 1.1.1 to 1.6.1

Bumps `maven-resolver.version` from 1.1.1 to 1.6.1.

Updates `maven-resolver-connector-basic` from 1.1.1 to 1.6.1
- [Release notes](https://github.com/apache/maven-resolver/releases)
- [Commits](https://github.com/apache/maven-resolver/compare/maven-resolver-1.1.1...maven-resolver-1.6.1)

Updates `maven-resolver-impl` from 1.1.1 to 1.6.1
- [Release notes](https://github.com/apache/maven-resolver/releases)
- [Commits](https://github.com/apache/maven-resolver/compare/maven-resolver-1.1.1...maven-resolver-1.6.1)

Updates `maven-resolver-transport-http` from 1.1.1 to 1.6.1
- [Release notes](https://github.com/apache/maven-resolver/releases)
- [Commits](https://github.com/apache/maven-resolver/compare/maven-resolver-1.1.1...maven-resolver-1.6.1)

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

spring-cloud-test-support/pom.xml

@@ -16,7 +16,7 @@
 	<description>Spring Cloud Test Support</description>
 	<properties>
 		<maven.version>3.5.4</maven.version>
-		<maven-resolver.version>1.1.1</maven-resolver.version>
+		<maven-resolver.version>1.6.1</maven-resolver.version>
 	</properties>
 	<dependencies>
 		<dependency>