Add data to karma runfiles

Closes #391

PiperOrigin-RevId: 231482078
diff --git a/internal/karma/karma_web_test.bzl b/internal/karma/karma_web_test.bzl
index f6be58f..99ea150 100644
--- a/internal/karma/karma_web_test.bzl
+++ b/internal/karma/karma_web_test.bzl
@@ -263,6 +263,7 @@
     runfiles += ctx.files.runtime_deps
     runfiles += ctx.files.bootstrap
     runfiles += ctx.files.static_files
+    runfiles += ctx.files.data
 
     return ctx.runfiles(
         files = runfiles,