fix(ci): restore extension package boundary excludes

extensions/browser/tsconfig.json

@@ -9,7 +9,6 @@
     "./dist/**",
     "./node_modules/**",
     "./src/test-support/**",
-    "./src/**/test-support/**",
     "./src/**/*test-helpers.ts",
     "./src/**/*test-harness.ts",
     "./src/**/*test-support.ts"

tsconfig.extensions.json

@@ -14,7 +14,6 @@
     "**/*test-harness.ts",
     "**/*test-support.ts",
     "extensions/**/src/test-support/**",
-    "extensions/**/src/**/test-support/**",
     "test/**"
   ]
 }