enable rocm builds

.github/workflows/test.yaml

@@ -59,8 +59,6 @@ jobs:
           name: cuda-${{ matrix.cuda-version }}-libraries
           path: llm/llama.cpp/build/**/lib/*
   generate-rocm:
-    # TODO: re-enable once runners get more storage
-    if: ${{ false }}
     strategy:
       matrix:
         rocm-version: