Sync code and test CI; rename some env vars (#11686)

scripts/ci/amd_ci_exec.sh

@@ -15,7 +15,7 @@ fi
 
 WORKDIR="/sglang-checkout/test/srt"
 declare -A ENV_MAP=(
-  [SGLANG_AMD_CI]=1
+  [SGLANG_IS_IN_CI_AMD]=1
   [SGLANG_IS_IN_CI]=1
   [SGLANG_USE_AITER]=1
 )

scripts/ci/ci_install_dependency.sh

@@ -13,6 +13,7 @@ echo "CUDA_VISIBLE_DEVICES=${CUDA_VISIBLE_DEVICES:-}"
 
 # Clear torch compilation cache
 python3 -c 'import os, shutil, tempfile, getpass; cache_dir = os.environ.get("TORCHINDUCTOR_CACHE_DIR") or os.path.join(tempfile.gettempdir(), "torchinductor_" + getpass.getuser()); shutil.rmtree(cache_dir, ignore_errors=True)'
+rm -rf /root/.cache/flashinfer
 
 # Install apt packages
 apt install -y git libnuma-dev