fix(deps): update dependency @celo/base to v6.0.1

[renovate[bot]]

This PR contains the following updates:

Package	Change	Age	Adoption	Passing	Confidence
@celo/base (source)	6.0.0 -> 6.0.1

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Release Notes

celo-org/developer-tooling (@​celo/base)

### [`v6.0.1`](https://togithub.com/celo-org/developer-tooling/releases/tag/%40celo/base%406.0.1) [Compare Source](https://togithub.com/celo-org/developer-tooling/compare/ff3b4b3a6b282600fbef48cf7c5908eb9c323efb...@celo/base@6.0.1) ##### Patch Changes - [#​200](https://togithub.com/celo-org/developer-tooling/pull/200) [`6e3372f`](https://togithub.com/celo-org/developer-tooling/commit/6e3372f5ada20bb59d88e275170be4dae1e99f01) Thanks [@​nicolasbrugneaux](https://togithub.com/nicolasbrugneaux)! - The following changes are related to adding support for more fee currencies in the [@​celo](https://togithub.com/celo) packages. (CHANGED): all places referring to gasCurrencies have been changed from `string` to `StrongAddress` for safer types. This shouldn't impact you as you already should have been giving `0x${string}` in these places

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