ci:rm unuse llvm download tool

.github/actions/setup-deps/action.yml

@@ -36,9 +36,11 @@ runs:
         opt_deps=(
           cjson       # for github.com/goplus/lib/c/cjson
           sqlite      # for github.com/goplus/lib/c/sqlite
-          python@3.12 # for github.com/goplus/lib/py
         )
         brew install "${opt_deps[@]}"
+
+        brew install python@3.12 || true # for github.com/goplus/lib/py
+        brew link --overwrite python@3.12
     - name: Install Ubuntu dependencies
       if: runner.os == 'Linux'
       shell: bash

.github/workflows/populate_linux_sysroot.sh

@@ -17,12 +17,7 @@ cat > "${POPULATE_LINUX_SYSROOT_SCRIPT}" << EOF
 export DEBIAN_FRONTEND=noninteractive
 
 apt-get update
-apt-get install -y build-essential zlib1g-dev
-apt-get install -y lsb-release gnupg2 wget rsync
-
-echo "deb http://apt.llvm.org/\$(lsb_release -cs)/ llvm-toolchain-\$(lsb_release -cs)-19 main" | tee /etc/apt/sources.list.d/llvm.list
-wget -O - https://apt.llvm.org/llvm-snapshot.gpg.key | apt-key add -
-apt-get update
+apt-get install -y build-essential zlib1g-dev rsync
 
 error() {
 	echo -e "\$1" >&2