chore(deps): bump google.golang.org/grpc from 1.47.0 to 1.50.0

[dependabot]

Bumps google.golang.org/grpc from 1.47.0 to 1.50.0.

Release notes

Sourced from google.golang.org/grpc's releases.

Release 1.50.0

Behavior Changes

• client: use proper "@" semantics for connecting to abstract unix sockets. (#5678)
  • This is technically a bug fix; the result is that the address was including a trailing NULL byte, which it should not have. This may break users creating the socket in Go by prefixing a NULL instead of an "@", though, so calling it out as a behavior change.
  • Special Thanks: @​jachor

New Features

• metadata: add experimental ValueFromIncomingContext to more efficiently retrieve a single value (#5596)
  • Special Thanks: @​horpto
• stats: provide peer information in HandleConn context (#5589)
  • Special Thanks: @​feihu-stripe
• xds: add support for Outlier Detection, enabled by default (#5435, #5673)

Bug Fixes

• client: fix deadlock in transport caused by GOAWAY racing with stream creation (#5652)
  • This should only occur with an HTTP/2 server that does not follow best practices of an advisory GOAWAY (not a grpc-go server).
• xds/xdsclient: fix a bug which was causing routes with cluster_specifier_plugin set to be NACKed when GRPC_EXPERIMENTAL_XDS_RLS_LB was off (#5670)
• xds/xdsclient: NACK cluster resource if config_source_specifier in lrs_server is not self (#5613)
• xds/ringhash: fix a bug which sometimes prevents the LB policy from retrying connection attempts (#5601)
• xds/ringhash: do nothing when asked to exit IDLE instead of falling back on the default channel behavior of connecting to all addresses (#5614)
• xds/rls: fix a bug which was causing the channel to be stuck in IDLE (#5656)
• alts: fix a bug which was setting WaitForReady on handshaker service RPCs, thereby delaying fallback when required (#5620)
• gcp/observability: fix End() to cleanup global state correctly (#5623)

Release 1.49.0

New Features

• gcp/observability: add support for Environment Variable GRPC_CONFIG_OBSERVABILITY_JSON (#5525)
• gcp/observability: add support for custom tags (#5565)

Behavior Changes

• server: reduce log level from Warning to Info for early connection establishment errors (#5524)
  • Special Thanks: @​jpkrohling

Bug Fixes

• client: fix race in flow control that could lead to unexpected EOF errors (#5494)
• client: fix a race that could cause RPCs to time out instead of failing more quickly with UNAVAILABLE (#5503)
• client & server: fix a panic caused by passing a nil stats handler to grpc.WithStatsHandler or grpc.StatsHandler (#5543)
• transport/server: fix a race that could cause a stray header to be sent (#5513)
• balancer: give precedence to IDLE over TRANSIENT_FAILURE when aggregating connectivity state (#5473)
• xds/xdsclient: request correct resource name when user specifies a new style resource name with empty authority (#5488)
• xds/xdsclient: NACK endpoint resources with zero weight (#5560)
• xds/xdsclient: fix bug that would reset resource version information after ADS stream restart (#5422)
• xds/xdsclient: fix goroutine leaks when load reporting is enabled (#5505)
• xds/ringhash: fix config update processing to recreate ring and picker when min/max ring size changes (#5557)

... (truncated)

Commits

• c1d7d7a Change version to 1.50.0 (#5685)
• 1451c62 internal/transport: optimize grpc-message encoding/decoding (#5654)
• be4b63b test: minor test cleanup (#5679)
• d83070e Changed Outlier Detection Env Var to default true (#5673)
• 54521b2 client: remove trailing null from unix abstract socket address (#5678)
• 36e4810 orca: cleanup old code, and get grpc package to use new code (#5627)
• e8866a8 build: harden GitHub Workflow permissions (#5660)
• 8458251 xdsclient: ignore routes with cluster_specifier_plugin when GRPC_EXPERIMENTAL...
• a238ceb xDS: Outlier Detection Env Var not hardcoded to false (#5664)
• b1d7f56 transport: Fix deadlock in transport caused by GOAWAY race with new stream cr...
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