build(deps): bump github.com/knadh/koanf from 1.3.3 to 1.4.5

Bumps [github.com/knadh/koanf](https://github.com/knadh/koanf) from 1.3.3 to 1.4.5.
- [Release notes](https://github.com/knadh/koanf/releases)
- [Commits](knadh/koanf@v1.3.3...v1.4.5)

---
updated-dependencies:
- dependency-name: github.com/knadh/koanf
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

Signed-off-by: dependabot[bot] <support@github.com>

Author: dependabot[bot]

go.mod

@@ -7,11 +7,10 @@ require (
 	github.com/asaskevich/govalidator v0.0.0-20210307081110-f21760c49a8d // indirect
 	github.com/go-ozzo/ozzo-validation v3.6.0+incompatible
 	github.com/gofiber/fiber/v2 v2.23.0
-	github.com/knadh/koanf v1.3.3
+	github.com/knadh/koanf v1.4.5
 	github.com/magefile/mage v1.12.1
 	github.com/mattn/go-sqlite3 v2.0.3+incompatible // indirect
 	github.com/pelletier/go-toml v1.8.1 // indirect
-	github.com/pkg/errors v0.9.1 // indirect
 	github.com/robfig/cron/v3 v3.0.1
 	gorm.io/driver/mysql v1.2.2
 	gorm.io/driver/postgres v1.2.1