chore: moving to otel from opencensus #7088

Job	Run time
Check codegen and manifest	2m 31s
Lint	57s
Unit test	9m 6s
Build and Test (1.25.8)	10m 34s
[Generator Resource Expansion] Build and Test	11m 4s
Build and Test (1.26.3)	10m 55s
Test Gator	3m 56s
Build and Test (1.27.1)	10m 44s
Build and Test (1.28.0)	10m 53s
[Helm] Build and Test (3.7.2, gatekeeper-system)	9m 1s
[Trivy] Scan for vulnerabilities	2m 59s
[Helm] Build and Test (3.7.2, custom-namespace)	9m 18s
	1h 31m 58s

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