fix: update protobuf version to avoid pip conflict

Dockerfile

@@ -41,7 +41,7 @@ RUN pip install --no-cache-dir "pyannote.audio>=3.1.0"
 RUN pip install --no-cache-dir c2pa-python
 
 # Step 7: Final Misc
-RUN pip install --no-cache-dir "protobuf~=4.25.3" python-magic email-validator reportlab
+RUN pip install --no-cache-dir "protobuf>=5.26.1" python-magic email-validator reportlab
 
 COPY . .