chore(deps): update dependency go to 1.21 #916

Job	Run time
Build integration for (linux, amd64)	44s
Build integration for (linux, arm64)	45s
Build integration for (linux, arm)	44s
Helm chart Lint (v1.23.17)	17s
Helm chart Lint (v1.24.17)	14s
Helm chart Lint (v1.25.13)	22s
Helm chart Lint (v1.26.8)	23s
Helm chart Lint (v1.27.5)	20s
Static analysis and linting	1m 23s
Unit tests	40s
Kubernetes E2E tests (v1.23.17)	1m 44s
Kubernetes E2E tests (v1.24.17)	2m 9s
Kubernetes E2E tests (v1.25.13)	1m 48s
Kubernetes E2E tests (v1.26.8)	2m 10s
Kubernetes E2E tests (v1.27.5)	2m 7s
	15m 50s

Provide feedback