fix(deps): update dependency @grpc/proto-loader to v0.7.13

[renovate[bot]]

This PR contains the following updates:

Package	Change	Age	Adoption	Passing	Confidence
@grpc/proto-loader (source)	0.7.12 -> 0.7.13

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Release Notes

grpc/grpc-node (@​grpc/proto-loader)

### [`v0.7.13`](https://togithub.com/grpc/grpc-node/releases/tag/%40grpc/proto-loader%400.7.13): @​grpc/proto-loader 0.7.13 [Compare Source](https://togithub.com/grpc/grpc-node/compare/@grpc/proto-loader@0.7.12...@grpc/proto-loader@0.7.13) - Include method options in method definition objects ([#​2711](https://togithub.com/grpc/grpc-node/issues/2711) contributed by [@​n0v1](https://togithub.com/n0v1)) - Avoid generating duplicate TypeScript method declarations in some cases ([#​2717](https://togithub.com/grpc/grpc-node/issues/2717)) - Update Protobuf.js dependency to a newer version ([#​2731](https://togithub.com/grpc/grpc-node/issues/2731))

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