[None][infra] update github token name

Signed-off-by: Yiteng Niu <[email protected]>

Author: niukuo

jenkins/L0_MergeRequest.groovy

@@ -514,9 +514,9 @@ def getGithubMRChangedFile(pipeline, githubPrApiUrl, function, filePath="") {
     def result = null
     def pageId = 0
     withCredentials([
-        string(
-            credentialsId: 'github-token-trtllm-ci',
-            variable: 'GITHUB_API_TOKEN'
+        usernamePassword(
+            credentialsId: 'github-cred-trtllm-ci',
+            passwordVariable: 'GITHUB_API_TOKEN'
         ),
     ]) {
         while(true) {