fix(deps): update module code.vegaprotocol.io/priceproxy to v0.2.0

[renovate[bot]]

This PR contains the following updates:

Package	Change	Age	Adoption	Passing	Confidence
code.vegaprotocol.io/priceproxy	v0.0.2 -> v0.2.0

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Release Notes

vegaprotocol/priceproxy (code.vegaprotocol.io/priceproxy)

### [`v0.2.0`](https://redirect.github.com/vegaprotocol/priceproxy/compare/v0.1.0...v0.2.0) [Compare Source](https://redirect.github.com/vegaprotocol/priceproxy/compare/v0.1.0...v0.2.0) ### [`v0.1.0`](https://redirect.github.com/vegaprotocol/priceproxy/compare/v0.0.3...v0.1.0) [Compare Source](https://redirect.github.com/vegaprotocol/priceproxy/compare/v0.0.3...v0.1.0) ### [`v0.0.3`](https://redirect.github.com/vegaprotocol/priceproxy/compare/v0.0.2...v0.0.3) [Compare Source](https://redirect.github.com/vegaprotocol/priceproxy/compare/v0.0.2...v0.0.3)

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