Update buildkite CI pipeline settings (#425)

Author: ytdHuang

.buildkite/CUDA_Ext.yml

@@ -22,12 +22,3 @@ steps:
       GROUP: "CUDA_Ext"
       SECRET_CODECOV_TOKEN: "ZfhQu/IcRLqNyZ//ZNs5sjBPaV76IHfU5gui52Qn+Rp8tOurukqgScuyDt+3HQ4R0hJYBw1/Nqg6jmBsvWSc9NEUx8kGsUJFHfN3no0+b+PFxA8oJkWc9EpyIsjht5ZIjlsFWR3f0DpPqMEle/QyWOPcal63CChXR8oAoR+Fz1Bh8GkokLlnC8F9Ugp9xBlu401GCbyZhvLTZnNIgK5yy9q8HBJnBg1cPOhI81J6JvYpEmcIofEzFV/qkfpTUPclu43WNoFX2DZPzbxilf3fsAd5/+nRkRfkNML8KiN4mnmjHxPPbuY8F5zC/PS5ybXtDpfvaMQc01WApXCkZk0ZAQ==;U2FsdGVkX1+eDT7dqCME5+Ox5i8GvWRTQbwiP/VYjapThDbxXFDeSSIC6Opmon+M8go22Bun3bat6Fzie65ang=="
     timeout_in_minutes: 60
-    if: | 
-        // Don't run Buildkite if the commit message includes the text [skip ci], [ci skip], or [no ci]
-        // Don't run Buildkite for PR draft
-        // Only run Buildkite when new commits and PR are made to main branch
-        build.message !~ /\[skip ci\]/ &&
-        build.message !~ /\[ci skip\]/ &&
-        build.message !~ /\[no ci\]/   &&
-        !build.pull_request.draft      &&
-        (build.branch =~ /main/ || build.pull_request.base_branch =~ /main/)

.buildkite/pipeline.yml

@@ -1,6 +1,17 @@
 # see: https://github.com/staticfloat/forerunner-buildkite-plugin
 steps:
   - label: ":runner: Dynamically launch pipelines"
+    if: | 
+        // Don't run Buildkite if the commit message includes the text [skip ci], [ci skip], or [no ci]
+        // Don't run Buildkite for PR draft
+        // Only run Buildkite when new commits and PR are made to main branch
+        build.message !~ /\[skip ci\]/ &&
+        build.message !~ /\[ci skip\]/ &&
+        build.message !~ /\[no ci\]/   &&
+        !build.pull_request.draft      &&
+        (build.branch =~ /main/ || build.pull_request.base_branch =~ /main/)
+    agents:
+      queue: "juliagpu"
     plugins:
       - staticfloat/forerunner: # CUDA.jl tests
           watch:
@@ -12,5 +23,3 @@ steps:
             - "test/ext-test/gpu/**"
             - "Project.toml"
           target: ".buildkite/CUDA_Ext.yml"
-    agents:
-      queue: "juliagpu"