Toggle for registryctl access log

[Patrick-Clausen]

Is your feature request related to a problem? Please describe.
I am trying to reduce unneeded logging inside my kubernetes cluster, and one of the offenders is registryctl which emits a log messages any time Kubernetes performs a health check:

IP.IP.IP.IP - - [16/May/2024:12:23:12 +0000] "GET /api/health HTTP/1.1" 200 9
IP.IP.IP.IP - - [16/May/2024:12:23:12 +0000] "GET /api/health HTTP/1.1" 200 9
IP.IP.IP.IP - - [16/May/2024:12:23:19 +0000] "GET /api/health HTTP/1.1" 200 9
IP.IP.IP.IP - - [16/May/2024:12:23:22 +0000] "GET /api/health HTTP/1.1" 200 9

Describe the solution you'd like
A configuration option for registryctl's configuration file to disable the access log:

log:
  accesslog:
    enabled: false
  level: debug

backwards compatible alternative:

log_level: debug
access_log_enabled: false

Describe the main design/architecture of your solution
Upgrade the Configuration model https://github.com/goharbor/harbor/blob/main/src/registryctl/config/config.go#L33 to one of the models above, use boolean to decide whether the LoggingHandler should be added: https://github.com/goharbor/harbor/blob/main/src/registryctl/handlers/handler.go#L40

Describe the development plan you've considered
It seems to be a small change, although I'm unfamiliar with the project, so not sure how relevant it is. I am open to contributing with it myself.

Additional context
N/A