Simplify muzzle config for protobuf instru

We were manually excluding all versions at the bottom f the range. Might as well start it from the actually supported version, it makes it more readable.

Author: vandonr

dd-java-agent/instrumentation/protobuf/build.gradle

@@ -8,8 +8,7 @@ muzzle {
   pass {
     group = "com.google.protobuf"
     module = "protobuf-java"
-    versions = "[2.0.0,)"
-    skipVersions = ["2.0.1", "2.0.3", "2.1.0", "2.2.0", "2.3.0", "2.4.0a", "2.4.1"]
+    versions = "[2.5.0,)"
     assertInverse = true
   }
 }