update "devenv_lin" CI with workable cmake version (#511)

Author: shssf

scripts/azure-pipelines.yml

@@ -251,6 +251,7 @@ jobs:
     vmImage: 'ubuntu-20.04'
   steps:
   - bash: |
+      . ./scripts/install_cmake_lin.sh
       ./scripts/install_system_deps.sh  # no intel python
       ./scripts/install_python_deps.sh  # numpy, conda-build and etc.
       echo ========================= build DPNP package ===============================