Logs masking in gs-node-service: Remove JSON.stringify for the object to use logs masking

[ghost]

• [x] There are some logs in gs-node-service where args object is logged as string using JSON.stringify. Pino logs redaction doesn't work on it. Need to improve those logs.
• [x] How can we handle masking for a field if it is logged in multiple nested objects at different level. For example: If we want to mask "entityPanNumber" in the logs then Pino supports object notation to mask the field. i.e. we need to specify 'body.entityPanNumber', 'data.entityPanNumber', 'data.data.entityPanNumber' if we want to mask this field in all these objects:

• [x] There is an issue(https://github.com/davidmarkclements/fast-redact/issues/57) which we reported on open source package fast-redact. This package is used by Pino for redaction feature. I have raised PR to fix this issue in fast-redact package. Waiting for it to close.

[arunsingh]

In discussion.

[ghost]

For 2nd task in this issue, we are making a convention **.<fieldName> which will be internally converted to apply redaction in pino upto nesting level 10 i.e. *.<fieldName>, *.*.<fieldName> ....... and so on.

[ghost]

Documentation updated: https://docs.godspeed.systems/docs/telemetry/intro#13332-log-fields-masking @kushal-mindgrep Please test this issue end to end.