Static Analysis Findings: Security Issues in nats_request_plane.py

[nv-anants]

This issue aggregates three security concerns identified by our static analysis:

>> Issue: [B108:hardcoded_tmp_directory] Probable insecure usage of temp file/directory.
   Severity: Medium   Confidence: Medium
   CWE: CWE-377 (https://cwe.mitre.org/data/definitions/377.html)
   More Info: https://bandit.readthedocs.io/en/1.7.10/plugins/b108_hardcoded_tmp_directory.html
   Location: WHEEL_UNPACKED_DIR/triton_distributed_icp-0.2.1.dev0+b050c6b/triton_distributed/icp/nats_request_plane.py:89:25
88	        port: int = 4223,
89	        store_dir: str = "/tmp/nats_store",
90	        log_dir: str = "logs",
91	        debug: bool = False,
92	        clear_store: bool = True,
93	        dry_run: bool = False,
94	    ) -> None:
95	        self._process = None
96	        self.port = port
--------------------------------------------------
>> Issue: [B603:subprocess_without_shell_equals_true] subprocess call - check for execution of untrusted input.
   Severity: Low   Confidence: High
   CWE: CWE-78 (https://cwe.mitre.org/data/definitions/78.html)
   More Info: https://bandit.readthedocs.io/en/1.7.10/plugins/b603_subprocess_without_shell_equals_true.html
   Location: WHEEL_UNPACKED_DIR/triton_distributed_icp-0.2.1.dev0+b050c6b/triton_distributed/icp/nats_request_plane.py:122:30
121	                with open(f"{log_dir}/nats_server.stderr.log", "wt") as output_err:
122	                    process = subprocess.Popen(
123	                        command,
124	                        stdin=subprocess.DEVNULL,
125	                        stdout=output_,
126	                        stderr=output_err,
127	                    )
128	                    self._process = process
--------------------------------------------------
>> Issue: [B603:subprocess_without_shell_equals_true] subprocess call - check for execution of untrusted input.
   Severity: Low   Confidence: High
   CWE: CWE-78 (https://cwe.mitre.org/data/definitions/78.html)
   More Info: https://bandit.readthedocs.io/en/1.7.10/plugins/b603_subprocess_without_shell_equals_true.html
   Location: WHEEL_UNPACKED_DIR/triton_distributed_icp-0.2.1.dev0+b050c6b/triton_distributed/icp/nats_request_plane.py:130:22
129	        else:
130	            process = subprocess.Popen(
131	                command,
132	                stdin=subprocess.DEVNULL,
133	            )
134	            self._process = process