improve knitro CI setup.

Author: eminyouskn

.github/actions/setup_optimizers_linux/action.yml

@@ -189,3 +189,8 @@ runs:
       run: |
         echo "$KNITRO_LICENSE" > ${HOME}/artelys_lic.txt
         echo "ARTELYS_LICENSE=${HOME}/artelys_lic.txt" >> $GITHUB_ENV
+    - name: Install KNITRO (using pip)
+      if: ${{ inputs.KNITRO_LICENSE != '' }}
+      shell: bash
+      run: |
+        python -m pip install knitro

.github/actions/setup_optimizers_macos/action.yml

@@ -187,3 +187,8 @@ runs:
       run: |
         echo "$KNITRO_LICENSE" > ~/artelys_lic.txt
         echo "ARTELYS_LICENSE=${HOME}/artelys_lic.txt" >> $GITHUB_ENV
+    - name: Install KNITRO (using pip)
+      if: ${{ inputs.KNITRO_LICENSE != '' }}
+      shell: bash
+      run: |
+        python -m pip install knitro

.github/actions/setup_optimizers_windows/action.yml

@@ -159,3 +159,8 @@ runs:
         # setup license using secrets
         echo $env:KNITRO_LICENSE > D:\artelys_lic.txt
         echo "ARTELYS_LICENSE=D:\artelys_lic.txt" >> $env:GITHUB_ENV
+    - name: Install KNITRO (using pip)
+      if: ${{ inputs.KNITRO_LICENSE != '' }}
+      shell: pwsh
+      run: |
+        python -m pip install knitro

.github/workflows/linux-build.yml

@@ -52,8 +52,7 @@ jobs:
 
       - name: Test
         run: |
-          export ARTELYS_LICENSE_DEBUG=1
-          python -m pip install pytest numpy scipy highsbox llvmlite tccbox knitro
+          python -m pip install pytest numpy scipy highsbox llvmlite tccbox
           python -m pytest tests -v
 
       - name: Upload artifact

.github/workflows/macos-build.yml

@@ -49,7 +49,7 @@ jobs:
 
       - name: Test
         run: |
-          python -m pip install pytest numpy scipy highsbox llvmlite tccbox knitro
+          python -m pip install pytest numpy scipy highsbox llvmlite tccbox
           python -m pytest tests -k "highs or ipopt" -v
 
       - name: Upload artifact

.github/workflows/windows-build.yml

@@ -49,7 +49,7 @@ jobs:
 
       - name: Test
         run: |
-          python -m pip install pytest numpy scipy highsbox llvmlite tccbox knitro
+          python -m pip install pytest numpy scipy highsbox llvmlite tccbox
           python -m pytest tests -v
 
       - name: Upload artifact