Add clean_ansi function to checker.py for log processing

This update introduces a new `clean_ansi` function to remove ANSI escape sequences from log output, enhancing readability. The `check_logs` function has been modified to utilize this new function, ensuring that the logs retrieved from Docker are plain text, which improves clarity for subsequent log analysis.

checker.py

@@ -130,11 +130,14 @@ class GRIST:
                 return record.Value
         raise ValueError(f"Setting {key} not found")
 
+def clean_ansi(text):
+    ansi_escape = re.compile(r'\x1B(?:[@-Z\\-_]|\[[0-?]*[ -/]*[@-~])')
+    return ansi_escape.sub('', text)
 
 def check_logs(log_handler):
     try:
-        logs = subprocess.run(['docker', 'logs', '--since', '10m', '--no-color', 'infernet-node'], capture_output=True, text=True, check=True)
-        log_content = logs.stdout
+        logs = subprocess.run(['docker', 'logs', '--since', '10m', 'infernet-node'], capture_output=True, text=True, check=True)
+        log_content = clean_ansi(logs.stdout)
     except subprocess.CalledProcessError as e:
         raise RuntimeError(f"Error running docker logs: {e}")