add Julia v1.11 to CI and buildkite config

Author: ytdHuang

.buildkite/CUDA_Ext.yml

@@ -4,7 +4,7 @@ steps:
       setup:
         version:
           - "1.10" # oldest
-          #- "1"    # latest
+          - "1"    # latest
     plugins:
       - JuliaCI/julia#v1:
           version: "{{matrix.version}}"

.github/workflows/CI.yml

@@ -41,7 +41,7 @@ jobs:
         # for core tests (latest and oldest supported versions)
         version:
           - '1.10' # oldest
-        #  - '1'    # latest
+          - '1'    # latest
         node:
           - os: 'ubuntu-latest'
             arch: 'x64'