Fix pipelines (#1088)

* attempt to fix pipelines

* attempt nr2

Author: Joao-Dionisio

.github/workflows/coverage.yml

@@ -36,7 +36,11 @@ jobs:
       - name: Prepare python environment
         run: |
           python -m pip install --upgrade pip
-          python -m pip install --group coverage || python -m pip install networkx cython pytest-cov numpy
+          if python -m pip help install | grep -q -- '--group'; then
+            python -m pip install --group coverage
+          else
+            python -m pip install networkx cython pytest-cov numpy
+          fi
 
       - name: Install PySCIPOpt
         run: |

.github/workflows/integration-test.yml

@@ -34,7 +34,11 @@ jobs:
       - name: Prepare python environment
         run: |
           python -m pip install --upgrade pip
-          python -m pip install --group test-full || python -m pip install networkx pytest-cov numpy
+          if python -m pip help install | grep -q -- '--group'; then
+            python -m pip install --group test-full
+          else
+            python -m pip install networkx pytest-cov numpy
+          fi
 
       - name: Install PySCIPOpt
         run: python -m pip install .
@@ -70,7 +74,11 @@ jobs:
         shell: powershell
         run: |
           python -m pip install --upgrade pip
-          python -m pip install --group test-full || python -m pip install networkx pytest-cov numpy
+          if python -m pip help install | grep -q -- '--group'; then
+            python -m pip install --group test-full
+          else
+            python -m pip install networkx pytest-cov numpy
+          fi
 
       - name: Install PySCIPOpt
         shell: powershell
@@ -107,7 +115,11 @@ jobs:
       - name: Prepare python environment
         run: |
           python -m pip install --upgrade pip
-          python -m pip install --group test-full || python -m pip install networkx pytest-cov pytest numpy
+          if python -m pip help install | grep -q -- '--group'; then
+            python -m pip install --group test-full
+          else
+            python -m pip install networkx pytest-cov pytest numpy
+          fi
 
       - name: Install PySCIPOpt
         run: |

.github/workflows/update-packages-and-documentation.yml

@@ -49,7 +49,11 @@ jobs:
       - name: Prepare python environment
         run: |
           python -m pip install --upgrade pip
-          python -m pip install --group test-full || python -m pip install wheel cython networkx pytest-cov
+          if python -m pip help install | grep -q -- '--group'; then
+            python -m pip install --group test-full
+          else
+            python -m pip install wheel cython networkx pytest-cov
+          fi
 
       - name: Install PySCIPOpt
         run: python -m pip install .
@@ -86,7 +90,11 @@ jobs:
         shell: powershell
         run: |
           python -m pip install --upgrade pip
-          python -m pip install --group test-full || python -m pip install wheel cython networkx pytest-cov
+          if python -m pip help install | grep -q -- '--group'; then
+            python -m pip install --group test-full
+          else
+            python -m pip install wheel cython networkx pytest-cov
+          fi
       - name: Install PySCIPOpt
         shell: powershell
         run: |