upgrade findbugs

Signed-off-by: tobiasKaminsky <tobias@kaminsky.me>

app/build.gradle

@@ -198,6 +198,6 @@ dependencies {
         exclude group: 'com.android.support', module: 'support-annotations'
     })
 
-    findbugsPlugins 'com.h3xstream.findsecbugs:findsecbugs-plugin:1.4.4'
+    findbugsPlugins 'com.h3xstream.findsecbugs:findsecbugs-plugin:1.8.0'
     findbugsPlugins 'com.mebigfatguy.fb-contrib:fb-contrib:7.4.2'
 }