enhancement: ignore data dir in static analysis (aws#2552)

Author: stobrien89

phpstan.neon

@@ -9,6 +9,7 @@ parameters:
     # Guzzle V5 classes & interfaces changed in V6
     - %rootDir%/../../../src/Handler/GuzzleV5/*
     - %rootDir%/../../../src/Crypto/Polyfill/*
+    - src/data/*
 
   ignoreErrors:
     # Intentional