SIENTIAPDE-1248: Integrate MinIO for object storage and add related configurations

This commit introduces MinIO integration for object storage within the Model Manager system. It includes:

- Added MinIO activity class for file operations (fetch, delete).
- Updated Activities orchestrator to include MinIO activities.
- Added MinIO configuration builder to utils/connectors_config.py.
- Added environment variables for MinIO configuration in .env.example.
- Added boto3 and botocore dependencies to requirements.txt.
- Added unit tests for MinIO activities.

validate.sh

@@ -67,7 +67,7 @@ if ! run_step "4. Security Analysis (Bandit)" "bandit -r model_manager/ -ll -q";
 fi
 
 # Step 5: Unit Tests (pytest)
-if ! run_step "5. Unit Tests (pytest)" "pytest tests/ --cov=model_manager --cov-report=term-missing --cov-fail-under=80 -q"; then
+if ! run_step "5. Unit Tests (pytest)" "pytest tests/ --cov=model_manager --cov-report=term-missing --cov-report=xml --cov-report=html --cov-fail-under=80 -q"; then
     FAILED_STEPS+=("Unit Tests")
 fi