add codestyle to tests

azure-pipelines.yml

@@ -28,7 +28,7 @@ jobs:
           cd /myagent/_work/1/s/api/tacticalrmm
           pip install --no-cache-dir --upgrade pip
           pip install --no-cache-dir setuptools==50.3.2 wheel==0.36.1
-          pip install --no-cache-dir -r requirements.txt -r requirements-test.txt
+          pip install --no-cache-dir -r requirements.txt -r requirements-test.txt -r requirements-dev.txt
         displayName: "Install Python Dependencies"
 
       - script: |
@@ -41,6 +41,15 @@ jobs:
           fi
         displayName: "Run django tests"
 
+      - script: |
+          cd /myagent/_work/1/s/api
+          source env/bin/activate
+          black --check tacticalrmm
+          if [ $? -ne 0 ]; then
+              exit 1
+          fi
+        displayName: "Codestyle black"
+
       - script: |
           cd /myagent/_work/1/s/api
           source env/bin/activate