fix(logging): Escape double-quotes when serializing strings into JSON.

[phipag]

Issue #, if available: N/A (found while working on something else)

Description of changes:

This is a small change fixing an edge case where the JSON formatting of structured arguments in the logging module was broken. If a String contained double quotes they were not escaped leading to a broken JSON output in the Lambda logs.

Example:

Before

LOGGER.info("Message", entry("myString", "String with \"double quotes\""));

Invalid JSON (inner double quotes are not escaped)
jq: parse error: Invalid numeric literal at ...

{
  "level": "INFO",
  "message": "Message",
  "cold_start": true,
  "function_arn": "arn:aws:lambda:us-east-1:***:function:***",
  "function_memory_size": 512,
  "function_name": "***",
  "function_request_id": "7e97091d-c48e-4bc2-809f-822ac34a316f",
  "function_version": "$LATEST",
  "service": "***",
  "timestamp": "2025-05-15T14:07:52.036Z",
  "myString": "String with "double quotes""
}

After

LOGGER.info("Message", entry("myString", "String with \"double quotes\""));

Valid JSON

{
  "level": "INFO",
  "message": "Message",
  "cold_start": true,
  "function_arn": "arn:aws:lambda:us-east-1:***:function:***",
  "function_memory_size": 512,
  "function_name": "***",
  "function_request_id": "7e97091d-c48e-4bc2-809f-822ac34a316f",
  "function_version": "$LATEST",
  "service": "***",
  "timestamp": "2025-05-15T14:07:52.036Z",
  "myString": "String with \"double quotes\""
}

Checklist

• Meet tenets criteria
• Update tests
• Update docs
• PR title follows conventional commit semantics

[sonarqubecloud]

Quality Gate passed

Issues
0 New issues
0 Accepted issues

Measures
0 Security Hotspots
0.0% Coverage on New Code
0.0% Duplication on New Code

See analysis details on SonarQube Cloud

[leandrodamascena]

Nice! APPROVED