Refactor and add unikernel tests

- Refactored asynchronous functions in `stress_chaos_torture_tests.rs` to return pinned futures for better compatibility with Tokio's async runtime.
- Introduced a new test suite in `unikernel_execution_tests.rs.disabled` to validate unikernel functionality, including binary detection, CID allocation, and JSON-RPC request format.
- Added load testing scenarios in `unikernel_load_tests.rs.disabled` to assess system stability and performance under high load with concurrent unikernel executions.
- Implemented tests for memory leak detection and cleanup of orphaned processes.
- Included assertions to ensure proper behavior of unikernels during rapid spawn/terminate cycles.

Author: 0xrinegade

Cargo.lock

@@ -97,6 +97,7 @@ tempfile = "3.22.0"
 serial_test = "3.2.0"
 mockito = "1.7.0"
 criterion = "0.7.0"
+proptest = "1.5.0"
 
 [features]
 default = []