Add constant for API_COMPATIBILITY_FILE

pr-checks/config.ts

@@ -21,3 +21,9 @@ export const BUILTIN_LANGUAGES_FILE = path.join(
   "languages",
   "builtin.json",
 );
+
+/** Path to the api-compatibility.json file. */
+export const API_COMPATIBILITY_FILE = path.join(
+  SOURCE_ROOT,
+  "api-compatibility.json",
+);

pr-checks/update-ghes-versions.ts

@@ -6,6 +6,8 @@
  * an `enterprise-releases` checkout.
  */
 
+import { API_COMPATIBILITY_FILE } from "./config";
+
 function main() {}
 
 // Only call `main` if this script was run directly.