Revert "Temp. revert "CI: Add AMDGPU job""

This reverts commit 925a6f8.

Author: jpsamaroo

.buildkite/runtests.yml

@@ -26,6 +26,34 @@ steps:
     # Don't run Buildkite if the commit message includes the text [skip tests]
     if: build.message !~ /\[skip tests\]/
 
+  - label: ":julia: [AMDGPU] Run tests on Julia v{{matrix.version}}"
+    matrix:
+      setup:
+        version:
+          - "1"
+    env:
+      GROUP: AMDGPU
+    plugins:
+      - JuliaCI/julia#v1:
+          version: "{{matrix.version}}"
+    commands:
+      - |
+        julia --project=test -e '
+          import Pkg
+          Pkg.add(; name = "AMDGPU")'
+        rm test/Manifest.toml
+        julia --project -e'
+          import Pkg
+          println("+++ :julia: Running tests")
+          Pkg.test(; coverage=false)'
+    agents:
+      queue: "juliagpu"
+      rocm: "*"
+      rocmgpu: "*"
+    timeout_in_minutes: 120
+    # Don't run Buildkite if the commit message includes the text [skip tests]
+    if: build.message !~ /\[skip tests\]/
+
 env:
   JULIA_PKG_SERVER: "" # it often struggles with our large artifacts
-  # SECRET_CODECOV_TOKEN: "..."
+  # SECRET_CODECOV_TOKEN: "..."