chore(deps): move tests dependency file

Author: AsifArmanRahman

.github/workflows/tests.yml

@@ -41,7 +41,7 @@ jobs:
             -   name: Install dependencies
                 run: |
                     python -m pip install --upgrade pip
-                    pip install -r requirements.dev.txt
+                    pip install -r tests/requirements.txt
                     pip install -r requirements.txt
 
             -   name: Test with pytest and Generate Coverage report