[CI] Reduce MacOS CI build time (#7559)

Enabled LLD for macos build.

Environmental variables defined in `ci.yml` do not get propagated to
`build-macos.yml` automatically. For the reason we have to either
redefine them or pass the variables explicitly.

```
  [355/388, 519.606s elapsed] Linking CXX executable third_party/nvidia/unittest/Conversion/TritonGPUToLLVM/TestPtxAsmFormat
  [356/388, 520.757s elapsed] Linking CXX executable third_party/amd/unittest/Conversion/TestOptimizeLDS
  [357/388, 2380.661s elapsed] Building CXX object bin/CMakeFiles/triton-opt.dir/triton-opt.cpp.o
  [358/388, 2398.139s elapsed] Building CXX object bin/CMakeFiles/triton-llvm-opt.dir/triton-llvm-opt.cpp.o
```

Based on the log added by @peterbell10, the most time was spent on
linking and now it's been reduced

Author: Jokeren

.github/workflows/build-macos.yml

@@ -16,6 +16,7 @@ jobs:
     timeout-minutes: 60
     env:
       RUNNER_TYPE: ${{ matrix.runner[0] }}
+      TRITON_BUILD_WITH_CLANG_LLD: "TRUE"
     name: Build MacOS
     steps:
       - name: Checkout
@@ -95,7 +96,7 @@ jobs:
         env:
           TRITON_BUILD_WITH_O1: "true"
           # macos-latest has 3 vcpus and 7GB DRAM, to save memory we limit the number of jobs to 3
-          # https://docs.github.com/en/actions/using-github-hosted-runners/about-github-hosted-runners/about-github-hosted-runners#standard-github-hosted-runners-for-public-repositories
+          # https://docs.github.com/en/actions/reference/github-hosted-runners-reference#standard-github-hosted-runners-for-public-repositories
           MAX_JOBS: 3
           # Add elapsed time in seconds to ninja status to monitor where build stalls
           NINJA_STATUS: "[%f/%t, %es elapsed] "

.github/workflows/ci.yml

@@ -12,14 +12,6 @@ concurrency:
   group: ${{ github.ref }}
   cancel-in-progress: ${{ github.ref != 'refs/heads/main' }}
 permissions: read-all
-env:
-  TRITON_BUILD_WITH_CCACHE: "true"
-  TRITON_BUILD_WITH_CLANG_LLD: "TRUE"
-  TRITON_USE_ASSERT_ENABLED_LLVM: "TRUE"
-  TRITON_DISABLE_LINE_INFO: 1
-  PROTON_SKIP_PC_SAMPLING_TEST: 1
-  PYTHON: "python3"
-  CCACHE_COMPRESS: "true"
 
 jobs:
 

.github/workflows/integration-tests-nvidia.yml

@@ -47,7 +47,6 @@ jobs:
           echo "llvm=$(cat $llvm_file | cut -c 1-8)" >> $GITHUB_OUTPUT
           echo "nvidia=$(sha256sum $nvidia_file | cut -d ' ' -f 1)" >> $GITHUB_OUTPUT
           echo "json=$(cat $json_file)" >> $GITHUB_OUTPUT
-          echo "datetime=$(date -u -Iseconds)" >> $GITHUB_OUTPUT
         shell: bash
       - name: Cache build dependencies
         uses: actions/cache@v4