fix(deps): update module github.com/pion/ion-log to v1.2.1

[renovate[bot]]

This PR contains the following updates:

Package	Type	Update	Change
github.com/pion/ion-log	require	patch	v1.2.0 -> v1.2.1

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Release Notes

pion/ion-log

### [`v1.2.1`](https://togithub.com/pion/ion-log/releases/v1.2.1) [Compare Source](https://togithub.com/pion/ion-log/compare/v1.2.0...v1.2.1) (feat) add StringToLevel

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