Fix: expand mypy check to entire src directory

Signed-off-by: Mounil <[email protected]>

Author: Mounil2005

.github/workflows/mypy.yml

@@ -14,7 +14,7 @@ jobs:
         uses: actions/checkout@v4
 
       - name: Set up Python
-      - uses: actions/setup-python@v5
+        uses: actions/setup-python@v5
         with:
           python-version: "3.10"
 
@@ -26,6 +26,6 @@ jobs:
 
       - name: Run mypy
         run: |
-          mypy path/hedera_sdk_python/src/hiero_sdk_python
-          
+          mypy src/hiero_sdk_python
+
         continue-on-error: true