Fixing staticcheck linter issues

[sluongng]

Expected Behavior

Current code should pass staticcheck linting

Actual Behavior

git_protocol_v2_handler.go:133:55: should use time.Since instead of time.Now().Sub (S1012)
managed_repository.go:118:41: should use time.Since instead of time.Now().Sub (S1012)
reporting.go:96:40: should use time.Since instead of time.Now().Sub (S1012)
reporting.go:148:9: infinite recursive call (SA5007)

Steps to Reproduce the Problem

1. Run staticcheck

Specifications

• Version:
• Platform:

[sluongng]

I have a branch for fixing this https://github.com/sluongng/goblet/tree/sluongngoc/fix-staticcheck

Will submit a PR soon