Audit Log messages are formatted even when audit log is disabled

[tippmar-nr]

Description
After the migration to use Serilog for internal logging, we rely on configuration to suppress output of audit log messages. But it turns out that the code that formats and emits the message to Serilog still executes on every data send, resulting in unnecessary processing and memory allocation.

Expected Behavior
Do not format and emit audit log messages except when audit logging is enabled.

For Maintainers Only or Hero Triaging this bug
Suggested Priority (P1,P2,P3,P4,P5):
P4
Suggested T-Shirt size (S, M, L, XL, Unknown):
S

[workato-integration]

https://issues.newrelic.com/browse/NEWRELIC-9424