Remove pr-swagger-gen dependency on clone-enterprise (#77217)

clone-enterprise step can fail in swagger-gen pipeline

.drone.yml

@@ -1157,6 +1157,7 @@ steps:
   environment:
     GITHUB_TOKEN:
       from_secret: github_token
+  failure: ignore
   image: alpine/git:2.40.1
   name: clone-enterprise
 - commands:
@@ -4667,6 +4668,6 @@ kind: secret
 name: gcr_credentials
 ---
 kind: signature
-hmac: 975f4bc4ea819f11b9abf46a1e17fc55161551ab02b5c6a905393def886ad4ae
+hmac: 4c04040e7890d9f1da64ff3e2c006db1b3de4276b57ce4401849ec4ceb665ea8
 
 ...

scripts/drone/pipelines/swagger_gen.star

@@ -42,7 +42,7 @@ def swagger_gen_step(ver_mode):
 
 def swagger_gen(trigger, ver_mode, source = "${DRONE_SOURCE_BRANCH}"):
     test_steps = [
-        clone_enterprise_step_pr(source = source),
+        clone_enterprise_step_pr(source = source, canFail = True),
         swagger_gen_step(ver_mode = ver_mode),
     ]