[MNG-8378] Upgrade to Resolver 2.0.4 (#1919)

Use latest Resolver with bugfixes and enhancements. Also, downgrades default JDK Transport to HTTP/1.1.
https://issues.apache.org/jira/secure/ReleaseNote.jspa?projectId=12320628&version=12355229

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https://issues.apache.org/jira/browse/MNG-8378

Author: cstamas

.mvn/maven.config

@@ -162,7 +162,7 @@ under the License.
     <plexusInterpolationVersion>1.27</plexusInterpolationVersion>
     <plexusTestingVersion>1.4.0</plexusTestingVersion>
     <plexusXmlVersion>4.0.4</plexusXmlVersion>
-    <resolverVersion>2.0.3</resolverVersion>
+    <resolverVersion>2.0.4</resolverVersion>
     <securityDispatcherVersion>4.0.2</securityDispatcherVersion>
     <sisuVersion>0.9.0.M3</sisuVersion>
     <slf4jVersion>2.0.16</slf4jVersion>