Replace linter gocyclo with gocognit

[tung2744]

ref #3338

What have been done:

1. Turn on gocognit liniter
2. Ignore gocognit errors if:
   • The code do not have tests. We don't want to risk introducing bugs before next release.
   • The code will not be updated or maintained, and is going to be removed. e.g. latte, interaction, interaction webapp.
   • The code is one time use, e.g. scripts.
3. Fix remaining gocognit errors.
4. Turn off gocyclo linter.

[louischan-oursky]

This flag should be set in the configuration file. https://golangci-lint.run/usage/configuration/

[tung2744]

Updated, thanks!