Bump go.uber.org/zap from 1.21.0 to 1.26.0 in /extension/observer/ecsobserver #1346

Job	Run time
setup-environment	8m 52s
lint	13m 5s
unittest (1.18)	13m 49s
unittest (1.17)	13m 36s
build-examples	4m 22s
check-collector-module-version	5s
checks	2m 56s
correctness-metrics	4m 16s
correctness-traces	5m 25s
integration-tests	12m 44s
cross-compile	0s
build-package	0s
windows-msi	0s
publish-check	0s
publish-dev	0s
publish-stable	0s
	1h 19m 10s

Provide feedback