build(deps): bump go.opentelemetry.io/contrib/instrumentation/google.golang.org/grpc/otelgrpc from 0.49.0 to 0.50.0 in /tools/invoker #1127

Job	Run time
Build and push all images (auth-go)	1m 42s
Build and push all images (auth-python)	1m 11s
Build and push all images (auth-nodejs)	1m 29s
Build and push all images (auth-python-lambda)	1m 33s
Build and push all images (auth-nodejs-lambda)	1m 37s
Build and push all images (auth-go-lambda)	1m 40s
Test Docker Compose (auth-go)	1m 47s
Test AWS Lambda Deployment (auth-python-lambda)	1m 6s
Test Docker Compose (auth-python)	1m 12s
Test AWS Lambda Deployment (auth-nodejs-lambda)	1m 12s
Test Docker Compose (auth-nodejs)	1m 15s
Test AWS Lambda Deployment (auth-go-lambda)	1m 9s
Test Knative Deployment (auth-go)	2m 0s
Test Docker Compose (auth-go-tracing)	1m 11s
Test Knative Deployment (auth-python)	2m 10s
Test Docker Compose (auth-python-tracing)	1m 14s
Test Docker Compose (auth-nodejs-tracing)	1m 14s
Test Knative Deployment (auth-nodejs)	2m 5s
Test Knative Deployment (auth-go-tracing)	2m 24s
Test Knative Deployment (auth-python-tracing)	1m 59s
Test Knative Deployment (auth-nodejs-tracing)	2m 13s
	33m 23s

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