Update benchmark.yml to use openstack22 (#1543)

* Update benchmark.yml to use openstack22

* Update benchmark.yml

* Update benchmark.yml

* Update benchmark.yml

.github/workflows/benchmark.yml

@@ -21,17 +21,17 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        llvm: ["11", "12", "13", "14", "15", "16"]
+        llvm: ["13", "14", "15", "16"]
         build: ["Release", "Debug"] # "RelWithDebInfo"
-        os: [openstack18]
+        os: [openstack22]
     timeout-minutes: 120 
     steps:
     - name: add llvm 
       run: |
           wget -O - https://apt.llvm.org/llvm-snapshot.gpg.key|sudo apt-key add -
           sudo apt-add-repository "deb http://apt.llvm.org/`lsb_release -c | cut -f2`/ llvm-toolchain-`lsb_release -c | cut -f2`-${{ matrix.llvm }} main" || true
-          sudo apt-get install -y python-pip autoconf cmake gcc g++ libtool gfortran libblas-dev llvm-${{ matrix.llvm }}-dev clang-${{ matrix.llvm }} libeigen3-dev libboost-dev
-          sudo pip install lit pathlib
+          sudo apt-get install -y python3-pip autoconf cmake gcc g++ libtool gfortran libblas-dev llvm-${{ matrix.llvm }}-dev clang-${{ matrix.llvm }} libeigen3-dev libboost-dev
+          sudo python3 -m pip install lit pathlib
           sudo touch /usr/lib/llvm-${{ matrix.llvm }}/bin/yaml-bench
           if [[ '${{ matrix.llvm }}' == '13' ]]; then
             sudo sed -i 's/add_executable(llvm-omp-device-info IMPORTED)//g' /usr/lib/llvm-${{matrix.llvm}}/lib/cmake/llvm/LLVMExports*.cmake