UnitTesting: add option 'requirements'

.github/workflows/UnitTesting.yml

@@ -3,6 +3,11 @@ name: Unit Testing
 on:
   workflow_call:
     inputs:
+      requirements:
+        description: 'Python dependencies to be installed through pip.'
+        required: false
+        default: '-r tests/requirements.txt'
+        type: string
       TestReport:
         description: "Generate unit test report with junitxml and upload results as an artifact."
         required: false
@@ -36,8 +41,8 @@ jobs:
 
       - name: 🔧 Install dependencies
         run: |
-          python -m pip install --upgrade pip
-          pip install -r tests/requirements.txt
+          python -m pip install -U pip
+          python -m pip install ${{ inputs.requirements }}
 
       - name: ☑ Run unit tests
         run: |