Upgrade Forbidden APIs plugin 3.5.1 -> 3.6 (#806)

See:
- https://github.com/policeman-tools/forbidden-apis/wiki/Changes
- policeman-tools/forbidden-apis@3.5.1...3.6

pom.xml

@@ -536,7 +536,7 @@
                 <plugin>
                     <groupId>de.thetaphi</groupId>
                     <artifactId>forbiddenapis</artifactId>
-                    <version>3.5.1</version>
+                    <version>3.6</version>
                     <configuration>
                         <bundledSignatures>
                             <bundledSignature>jdk-internal</bundledSignature>