Update module github.com/knadh/koanf to v1.5.0

[renovate[bot]]

This PR contains the following updates:

Package	Type	Update	Change
github.com/knadh/koanf	require	minor	v1.4.4 -> v1.5.0

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Release Notes

knadh/koanf

### [`v1.5.0`](https://togithub.com/knadh/koanf/releases/tag/v1.5.0) [Compare Source](https://togithub.com/knadh/koanf/compare/v1.4.5...v1.5.0) #### What's Changed - Add `Set(key, val)` shorthand for `Merge()`. by [@​knadh](https://togithub.com/knadh) in [https://github.com/knadh/koanf/pull/192](https://togithub.com/knadh/koanf/pull/192) **Full Changelog**: https://github.com/knadh/koanf/compare/v1.4.5...v1.5.0 ### [`v1.4.5`](https://togithub.com/knadh/koanf/releases/tag/v1.4.5) [Compare Source](https://togithub.com/knadh/koanf/compare/v1.4.4...v1.4.5) #### What's Changed - etcd_watch by [@​mkvolkov](https://togithub.com/mkvolkov) in [https://github.com/knadh/koanf/pull/168](https://togithub.com/knadh/koanf/pull/168) - make dotenv.Parser behave like env.Provider by [@​jxsl13](https://togithub.com/jxsl13) in [https://github.com/knadh/koanf/pull/179](https://togithub.com/knadh/koanf/pull/179) - aws secrets manager and parameter store providers added to read me by [@​gsingh-ds](https://togithub.com/gsingh-ds) in [https://github.com/knadh/koanf/pull/186](https://togithub.com/knadh/koanf/pull/186) #### New Contributors - [@​jxsl13](https://togithub.com/jxsl13) made their first contribution in [https://github.com/knadh/koanf/pull/179](https://togithub.com/knadh/koanf/pull/179) - [@​gsingh-ds](https://togithub.com/gsingh-ds) made their first contribution in [https://github.com/knadh/koanf/pull/186](https://togithub.com/knadh/koanf/pull/186) **Full Changelog**: https://github.com/knadh/koanf/compare/v1.4.4...v1.4.5

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