Upgrade go version to 1.21 #803

Job	Run time
Build and push all images (auth-go)	2m 33s
Build and push all images (auth-python)	1m 24s
Build and push all images (auth-nodejs)	2m 22s
Build and push all images (auth-python-lambda)	2m 4s
Build and push all images (auth-nodejs-lambda)	2m 51s
Build and push all images (auth-go-lambda)	2m 3s
Test AWS Lambda Deployment (auth-python-lambda)	1m 15s
Test AWS Lambda Deployment (auth-nodejs-lambda)	1m 16s
Test AWS Lambda Deployment (auth-go-lambda)	1m 11s
Test Knative Deployment (auth-go)	3m 6s
Test Docker Compose (auth-go)	1m 12s
Test Knative Deployment (auth-python)	3m 29s
Test Docker Compose (auth-python)	1m 14s
Test Knative Deployment (auth-nodejs)	2m 46s
Test Docker Compose (auth-nodejs)	1m 21s
Test Knative Deployment (auth-go-tracing)	2m 28s
Test Docker Compose (auth-go-tracing)	1m 13s
Test Knative Deployment (auth-python-tracing)	2m 44s
Test Docker Compose (auth-python-tracing)	1m 24s
Test Knative Deployment (auth-nodejs-tracing)	2m 46s
Test Docker Compose (auth-nodejs-tracing)	1m 23s
	42m 5s

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