Update module github.com/knadh/koanf to v1.2.2

[renovate[bot]]

This PR contains the following updates:

Package	Type	Update	Change
github.com/knadh/koanf	require	minor	v1.1.1 -> v1.2.2

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Release Notes

knadh/koanf

### [`v1.2.2`](https://togithub.com/knadh/koanf/compare/v1.2.1...v1.2.2) [Compare Source](https://togithub.com/knadh/koanf/compare/v1.2.1...v1.2.2) ### [`v1.2.1`](https://togithub.com/knadh/koanf/releases/v1.2.1) [Compare Source](https://togithub.com/knadh/koanf/compare/v1.2.0...v1.2.1) changelog for v1.2.0 -> v1.2.1 - [`29cce50`](https://togithub.com/knadh/koanf/commit/29cce50) Merge pull request [#​101](https://togithub.com/knadh/koanf/issues/101) from e-nikolov/fix-pflag-map-types - [`0202243`](https://togithub.com/knadh/koanf/commit/0202243) posflag: add support for pflag map types ### [`v1.2.0`](https://togithub.com/knadh/koanf/releases/v1.2.0) [Compare Source](https://togithub.com/knadh/koanf/compare/v1.1.1...v1.2.0) - [`5fc619c`](https://togithub.com/knadh/koanf/commit/5fc619c) Add Delim() - [`f001ae3`](https://togithub.com/knadh/koanf/commit/f001ae3) Merge pull request [#​98](https://togithub.com/knadh/koanf/issues/98) from knadh/fix-confmap-dep - [`bc5fe47`](https://togithub.com/knadh/koanf/commit/bc5fe47) Remove superfluous dependency on providers/confmap in the core

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