Add Julia 1.11 Enzyme job to pipeline

Added a new job for Julia 1.11 with Enzyme testing in the pipeline.

Note that I believe the current failure in CI should be fixed now Enzyme-side

Author: wsmoses

.buildkite/pipeline.yml

@@ -111,7 +111,25 @@ steps:
       JULIA_AMDGPU_CORE_MUST_LOAD: "1"
       JULIA_AMDGPU_HIP_MUST_LOAD: "1"
       JULIA_AMDGPU_DISABLE_ARTIFACTS: "1"
-    soft_fail: true
+
+  - label: "Julia 1.11 Enzyme"
+    plugins:
+      - JuliaCI/julia#v1:
+          version: "1.11"
+      - JuliaCI/julia-test#v1:
+          test_args: "enzyme"
+    agents:
+      queue: "juliagpu"
+      rocm: "*"
+      rocmgpu: "*"
+    if: build.message !~ /\[skip tests\]/
+    command: "julia --project -e 'using Pkg; Pkg.update()'"
+    timeout_in_minutes: 30
+    env:
+      JULIA_NUM_THREADS: 4
+      JULIA_AMDGPU_CORE_MUST_LOAD: "1"
+      JULIA_AMDGPU_HIP_MUST_LOAD: "1"
+      JULIA_AMDGPU_DISABLE_ARTIFACTS: "1"
 
   - label: "GPU-less environment"
     plugins: