Bump go.opentelemetry.io/collector/pdata from 1.19.0 to 1.20.0 (#1312) #6013

Job	Run time
build-auto-instrumentation	1m 36s
kubernetes-test (v1.26.0, autosdk)	2m 24s
kubernetes-test (v1.26.0, nethttp)	2m 58s
kubernetes-test (v1.26.0, nethttp_custom)	3m 1s
kubernetes-test (v1.26.0, gin)	2m 49s
kubernetes-test (v1.26.0, databasesql)	3m 42s
kubernetes-test (v1.26.0, grpc)	2m 58s
kubernetes-test (v1.26.0, otelglobal)	2m 50s
kubernetes-test (v1.26.0, kafka-go)	2m 35s
	24m 53s

Provide feedback