Bump json from 20190722 to 20200518

Bumps [json](https://github.com/douglascrockford/JSON-java) from 20190722 to 20200518.
- [Release notes](https://github.com/douglascrockford/JSON-java/releases)
- [Commits](https://github.com/douglascrockford/JSON-java/commits)

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

Author: dependabot-preview[bot]

build.gradle

@@ -28,7 +28,7 @@ jar{
 
 dependencies{
     api group: 'com.squareup.okhttp3', name: 'okhttp', version: '4.7.2'
-    api group: 'org.json', name: 'json', version: '20190722'
+    api group: 'org.json', name: 'json', version: '20200518'
     api group: 'org.jetbrains', name: 'annotations', version: '19.0.0'
     api(group: 'net.dv8tion', name: 'JDA', version: '4.1.1_154'){
         exclude(module: 'opus-java')