Use mkl=2021.4.0

Author: huydhn

.ci/docker/common/install_conda.sh

@@ -38,7 +38,7 @@ install_python() {
   if [[ $(uname -m) == "aarch64" ]]; then
     conda_install "openblas==0.3.28=*openmp*"
   else
-    conda_install mkl=2022.1.0 mkl-include=2022.1.0
+    conda_install mkl=2021.4.0 mkl-include=2021.4.0
   fi
 
   popd

.github/workflows/_unittest.yml

@@ -56,6 +56,7 @@ jobs:
       python-version: '3.11'
       submodules: 'true'
       ref: ${{ github.event_name == 'pull_request' && github.event.pull_request.head.sha || github.sha }}
+      timeout: 90
       script: |
         set -eux