chore: Exclude tests from published dist

Author: mykola-mokhnach

package.json

@@ -96,6 +96,7 @@
     "WebDriverAgentRunner",
     "WebDriverAgentTests",
     "XCTWebDriverAgentLib",
-    "CHANGELOG.md"
+    "CHANGELOG.md",
+    "!build/test"
   ]
 }