use powershell

Author: Vahid Tavanashad

.github/workflows/conda-package.yml

@@ -383,18 +383,14 @@ jobs:
 
       - name: Run tests
         if: env.rerun-tests-on-failure != 'true'
+        shell: pwsh
         run: |
-          @echo on
-          set matrix_python=${{ matrix.python }}
-          set python_ver_test_all_dtypes=${{ env.python-ver-test-all-dtypes }}
-          set package_name=${{ env.package-name }}
-
-          if "%matrix_python%" == "%python_ver_test_all_dtypes%" (
-            set DPNP_TEST_ALL_INT_TYPES=1
-            python -m pytest -ra --pyargs %package_name%.tests
-          ) else (
-            python -m pytest -n auto -ra --pyargs %package_name%.tests
-          )
+          if (${{ matrix.python }} -eq ${{ env.python-ver-test-all-dtypes }}) {
+            $env:DPNP_TEST_ALL_INT_TYPES=1
+            python -m pytest -ra --pyargs ${{ env.package-name }}.tests
+          } else {
+            python -m pytest -n auto -ra --pyargs ${{ env.package-name }}.tests
+          }
 
       - name: Run tests
         if: env.rerun-tests-on-failure == 'true'
@@ -404,18 +400,14 @@ jobs:
           timeout_minutes: ${{ env.rerun-tests-timeout }}
           max_attempts: ${{ env.rerun-tests-max-attempts }}
           retry_on: any
+          shell: pwsh
           command: |
-            @echo on
-            set matrix_python=${{ matrix.python }}
-            set python_ver_test_all_dtypes=${{ env.python-ver-test-all-dtypes }}
-            set package_name=${{ env.package-name }}
-
-            if "%matrix_python%" == "%python_ver_test_all_dtypes%" (
-              set DPNP_TEST_ALL_INT_TYPES=1
-              python -m pytest -ra --pyargs %package_name%.tests
-            ) else (
-              python -m pytest -n auto -ra --pyargs %package_name%.tests
-            )
+            if ( ${{ matrix.python }} -eq ${{ env.python-ver-test-all-dtypes }} ) {
+              $env:DPNP_TEST_ALL_INT_TYPES=1
+              python -m pytest -ra --pyargs ${{ env.package-name }}.tests
+            } else {
+              python -m pytest -n auto -ra --pyargs ${{ env.package-name }}.tests
+            }
 
   upload:
     name: Upload