Updated GitHub CI

Author: IAmVigneswaran

.github/workflows/unit_tests.yml

@@ -58,7 +58,7 @@ jobs:
         run: poetry self add poetry-plugin-export==1.9.0
 
       - name: Cache Poetry dependencies
-        uses: actions/cache@v3
+        uses: actions/cache@v5
         with: 
           path: |
             .venv