build(deps): bump go.opentelemetry.io/contrib/instrumentation/google.golang.org/grpc/otelgrpc from 0.49.0 to 0.50.0 in /tools/invoker #1089

Job	Run time
Build and push all images (geo)	4m 31s
Build and push all images (profile)	4m 19s
Build and push all images (rate)	4m 30s
Build and push all images (recommendation)	4m 16s
Build and push all images (reservation)	4m 29s
Build and push all images (user)	5m 30s
Build and push all images (search)	4m 19s
Test Knative Deployment (hotel-app-geo, kn-geo.yaml)	2m 13s
Test Knative Deployment (hotel-app-geo-tracing, kn-geo-tracing.yaml)	2m 10s
Test Docker Compose (geo)	1m 13s
Test Knative Deployment (hotel-app-profile, kn-profile.yaml)	2m 17s
Test Docker Compose (geo-tracing)	1m 17s
Test Docker Compose (profile)	1m 19s
Test Knative Deployment (hotel-app-rate, kn-rate.yaml)	2m 7s
Test Docker Compose (rate)	1m 16s
Test Knative Deployment (hotel-app-recommendation, kn-recommendation.yaml)	2m 9s
Test Docker Compose (recommendation)	1m 19s
Test Knative Deployment (hotel-app-reservation, kn-reservation.yaml)	2m 16s
Test Docker Compose (reservation)	1m 18s
Test Knative Deployment (hotel-app-user, kn-user.yaml)	2m 11s
Test Docker Compose (user)	1m 12s
Test Knative Deployment (hotel-app-search, kn-search.yaml)	2m 19s
Test Docker Compose (search)	1m 14s
Test Knative Deployment (hotel-app-search-tracing, kn-search-tracing.yaml)	2m 30s
Test Docker Compose (search-tracing)	1m 24s
	1h 3m 38s

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