Merge pull request #2751 from RossBrunton/ross/requirements

For CodeQL job, install testing requirements

Author: RossBrunton

.github/workflows/codeql.yml

@@ -29,7 +29,9 @@ jobs:
         languages: cpp, python
 
     - name: Install pip packages
-      run: pip install -r third_party/requirements.txt
+      run: |
+        pip install -r third_party/requirements.txt
+        pip install -r third_party/requirements_testing.txt
 
     - name: Install apt packages
       run: |
@@ -64,7 +66,9 @@ jobs:
         languages: cpp, python
 
     - name: Install pip packages
-      run: python3 -m pip install -r third_party/requirements.txt
+      run: |
+        python3 -m pip install -r third_party/requirements.txt
+        python3 -m pip install -r third_party/requirements_testing.txt
 
     - name: Install hwloc
       run: vcpkg install hwloc:x64-windows