Move isGhes utility to core file

packages/core/src/core.ts

@@ -372,6 +372,14 @@ export async function getIDToken(aud?: string): Promise<string> {
   return await OidcClient.getIDToken(aud)
 }
 
+/**
+ * Returns whether action runs on GitHub Enterprise Server or not.
+ */
+export function isGhes(): boolean {
+  const url = process.env['GITHUB_SERVER_URL'] || 'https://github.com'
+  return new URL(url).hostname.toUpperCase() !== 'GITHUB.COM'
+}
+
 /**
  * Summary exports
  */
@@ -386,8 +394,3 @@ export {markdownSummary} from './summary'
  * Path exports
  */
 export {toPosixPath, toWin32Path, toPlatformPath} from './path-utils'
-
-/**
- * isGhes helper export
- */
-export {isGhes} from './utils'

packages/core/src/utils.ts

@@ -39,11 +39,3 @@ export function toCommandProperties(
     endColumn: annotationProperties.endColumn
   }
 }
-
-/**
- * Returns this action runs on GitHub Enterprise Server or not.
- */
-export function isGhes(): boolean {
-  const url = process.env['GITHUB_SERVER_URL'] || 'https://github.com'
-  return new URL(url).hostname.toUpperCase() !== 'GITHUB.COM'
-}