fix(deps): update dependency @grpc/grpc-js to v1.12.2

[renovate]

This PR contains the following updates:

Package	Change	Age	Adoption	Passing	Confidence
@grpc/grpc-js (source)	1.11.3 -> 1.12.2

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Release Notes

grpc/grpc-node (@​grpc/grpc-js)

v1.12.2: grpc-tools 1.12.2

Compare Source

• Target an older Mac version when building Mac artifacts (#​2290)

v1.12.1: grpc-tools 1.12.1

Compare Source

• Avoid sparse files in Mac artifacts (#​2288)

v1.12.0: @​grpc/grpc-js 1.12.0

Compare Source

Changelog

• Provide the method_name for the CallCredentials callback generateMetadata (#​2814 contributed by @​becoded)
• Add an optional rejectUnauthorized field to the VerifyOptions interface, which can be passed as an argument to credentials.createSsl and createFromSecureContext (#​2812 contributed by @​vinothsa4891)

Experimental API changes

Added:

• CaCertificateUpdate
• CaCertificateUpdateListener
• IdentityCertificateUpdate
• IdentityCertificateUpdateListener
• CertificateProvider
• FileWatcherCertificateProvider
• FileWatcherCertificateProviderConfig
• createCertificateProviderChannelCredentials
• createCertificateProviderServerCredentials

Modified:

• LoadBalancer: The constructor now takes an additional argument of type ChannelCredentials.
• ChannelControlHelper#createSubchannel: Now takes an additional argument of type ChannelCredentials | null. This should be passed along if overriding this function.
• LeafLoadBalancer: The constructor now takes an additional argument of type ChannelCredentials.

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