Bump github.com/containerd/containerd from 1.6.12 to 1.7.6 in /utils/tracing/go #777

Job	Run time
Build and push all images (auth-go)	2m 21s
Build and push all images (auth-python)	1m 37s
Build and push all images (auth-nodejs)	2m 12s
Build and push all images (auth-python-lambda)	1m 56s
Build and push all images (auth-nodejs-lambda)	2m 7s
Build and push all images (auth-go-lambda)	1m 50s
Test AWS Lambda Deployment (auth-python-lambda)	1m 8s
Test Docker Compose (auth-go)	1m 12s
Test AWS Lambda Deployment (auth-nodejs-lambda)	1m 12s
Test Docker Compose (auth-python)	1m 16s
Test AWS Lambda Deployment (auth-go-lambda)	1m 13s
Test Knative Deployment (auth-go)	2m 57s
Test Docker Compose (auth-nodejs)	1m 26s
Test Knative Deployment (auth-python)	2m 28s
Test Docker Compose (auth-go-tracing)	1m 13s
Test Knative Deployment (auth-nodejs)	2m 48s
Test Docker Compose (auth-python-tracing)	1m 23s
Test Knative Deployment (auth-go-tracing)	2m 56s
Test Docker Compose (auth-nodejs-tracing)	1m 20s
Test Knative Deployment (auth-python-tracing)	3m 3s
Test Knative Deployment (auth-nodejs-tracing)	2m 35s
	40m 13s

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