update workflow to have string comparison

Author: Vahid Tavanashad

.github/workflows/conda-package.yml

@@ -218,7 +218,7 @@ jobs:
       - name: Run tests
         if: env.rerun-tests-on-failure != 'true'
         run: |
-          if [[ ${{ matrix.python }} == ${{ env.python-ver-test-all-dtypes }} ]]; then
+          if [[ "${{ matrix.python }}" == "${{ env.python-ver-test-all-dtypes }}" ]]; then
             export DPNP_TEST_ALL_INT_TYPES=1
             python -m pytest -ra --pyargs ${{ env.package-name }}.tests
           else
@@ -238,7 +238,7 @@ jobs:
             . $CONDA/etc/profile.d/mamba.sh
             mamba activate ${{ env.test-env-name }}
 
-            if [[ ${{ matrix.python }} == ${{ env.python-ver-test-all-dtypes }} ]]; then
+            if [[ "${{ matrix.python }}" == "${{ env.python-ver-test-all-dtypes }}" ]]; then
               export DPNP_TEST_ALL_INT_TYPES=1
               python -m pytest -ra --pyargs ${{ env.package-name }}.tests
             else
@@ -384,7 +384,7 @@ jobs:
       - name: Run tests
         if: env.rerun-tests-on-failure != 'true'
         run: |
-          if (${{ matrix.python }} -eq ${{ env.python-ver-test-all-dtypes }}) {
+          if ("${{ matrix.python }}" -eq "${{ env.python-ver-test-all-dtypes }}") {
             set DPNP_TEST_ALL_INT_TYPES=1
             python -m pytest -ra --pyargs ${{ env.package-name }}.tests
           } else {
@@ -400,7 +400,7 @@ jobs:
           max_attempts: ${{ env.rerun-tests-max-attempts }}
           retry_on: any
           command: |
-            if ( ${{ matrix.python }} -eq ${{ env.python-ver-test-all-dtypes }} ) {
+            if ( "${{ matrix.python }}" -eq "${{ env.python-ver-test-all-dtypes }}" ) {
               set DPNP_TEST_ALL_INT_TYPES=1
               python -m pytest -ra --pyargs ${{ env.package-name }}.tests
             } else {