Bump DPC++ compiler and MKL versions used in GH workflow (#2636)

The PR bumps max DPC++ compiler and MKL versions used in the build
GitHub workflow.

Author: antonwolfy

.github/workflows/conda-package.yml

@@ -93,13 +93,13 @@ jobs:
         continue-on-error: true
         run: conda build --no-test --python ${{ matrix.python }} --numpy 2.0 ${{ env.channels-list }} conda-recipe
         env:
-          MAX_BUILD_CMPL_MKL_VERSION: '2025.3a0'
+          MAX_BUILD_CMPL_MKL_VERSION: '2026.0a0'
 
       - name: ReBuild conda package
         if: steps.build_conda_pkg.outcome == 'failure'
         run: conda build --no-test --python ${{ matrix.python }} --numpy 2.0 ${{ env.channels-list }} conda-recipe
         env:
-          MAX_BUILD_CMPL_MKL_VERSION: '2025.3a0'
+          MAX_BUILD_CMPL_MKL_VERSION: '2026.0a0'
 
       - name: Upload artifact
         uses: actions/upload-artifact@ea165f8d65b6e75b540449e92b4886f43607fa02 # v4.6.2