[MDEPLOY-316] Parent 42 and prerequisite 3.6.3 (#54)

Update parent to 42 and prerequisite to Maven 3.6.3

---

https://issues.apache.org/jira/browse/MDEPLOY-316

.github/workflows/maven-verify.yml

@@ -25,3 +25,5 @@ jobs:
   build:
     name: Verify
     uses: apache/maven-gh-actions-shared/.github/workflows/maven-verify.yml@v4
+    with:
+      jdk-distribution-matrix: '[ "zulu" ]'

pom.xml

@@ -23,7 +23,7 @@ under the License.
   <parent>
     <groupId>org.apache.maven.plugins</groupId>
     <artifactId>maven-plugins</artifactId>
-    <version>41</version>
+    <version>42</version>
     <relativePath />
   </parent>
 
@@ -43,7 +43,7 @@ under the License.
   </contributors>
 
   <prerequisites>
-    <maven>3.2.5</maven>
+    <maven>3.6.3</maven>
   </prerequisites>
 
   <scm>

src/main/java/org/apache/maven/plugins/deploy/AbstractDeployMojo.java

@@ -99,6 +99,7 @@ protected void warnIfAffectedPackagingAndMaven(final String packaging) {
      * Creates resolver {@link RemoteRepository} equipped with needed whistles and bells.
      */
     protected RemoteRepository getRemoteRepository(final String repositoryId, final String url) {
+        // TODO: RepositorySystem#newDeploymentRepository does this very same thing!
         RemoteRepository result = new RemoteRepository.Builder(repositoryId, "default", url).build();
 
         if (result.getAuthentication() == null || result.getProxy() == null) {