fix(deps): update dependency @grpc/grpc-js to ~1.6.0

[renovate-bot]

This PR contains the following updates:

Package	Change	Age	Adoption	Passing	Confidence
@grpc/grpc-js (source)	~1.5.0 -> ~1.6.0

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Release Notes

grpc/grpc-node

v1.6.5

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• Consistently trigger name resolution when idle (#​2095)

v1.6.4

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• Ensure that request failures due to name resolution failure are reported consistently (#​2092)

v1.6.3

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• Disable per-session memory limit by default. (#​2084)
• Track existing ping timeouts even when there are no active requests on a connection (#​2087)
• Add more details to trace logs of keepalive pings (#​2085)
• Fix entity IDs in trace logs when channelz is disabled (#​2082)

v1.6.2

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• Adjusted the behavior of exponential backoff timers (#​2077)

v1.6.1

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• Enable support for the grpc.dns_min_time_between_resolutions_ms channel option, which controls the minimum time between successful DNS requests, with a default of 30,000 (30 seconds) (#​2076)

v1.6.0

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• Add credentials.createFromSecureContext, as described in gRFC L93 (#​1988)
• Set provided serviceName as property of generated Client subclasses (#​1993 contributed by @​DavyJohnes)
• Return never from functions that always throw (#​2056 contributed by @​dacioromero)
• Add experimental Outlier Detection load balancing policy, as described in gRFC A50 (disabled by default, enabled by setting the environment variable GRPC_EXPERIMENTAL_ENABLE_OUTLIER_DETECTION=true) (#​2058)
• Expose MetadataOptions interface (#​2071 contributed by @​kskalski)
• Surface stream writing errors as standard gRPC errors (#​2073)

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[igorbernstein2]

DO NOT MERGE until gax is updated

[summer-ji-eng]

DO NOT MERGE until gax is updated

gax v2.30.2 is updated "@grpc/grpc-js": "~1.6.0"

[nimf]

/gcbrun