Also bump release.version pom.xml property for Micronaut

Author: timtebeek

src/main/java/org/openrewrite/java/migrate/UpgradeJavaVersion.java

@@ -96,6 +96,7 @@ public TreeVisitor<?, ExecutionContext> getVisitor() {
             "/project/properties/maven.compiler.source",
             "/project/properties/maven.compiler.target",
             "/project/properties/maven.compiler.release",
+            "/project/properties/release.version",
             "/project/build/plugins/plugin[artifactId='maven-compiler-plugin']/configuration/source",
             "/project/build/plugins/plugin[artifactId='maven-compiler-plugin']/configuration/target",
             "/project/build/plugins/plugin[artifactId='maven-compiler-plugin']/configuration/release");