Bump go.uber.org/zap from 1.21.0 to 1.26.0 in /exporter/tanzuobservabilityexporter #1362

Job	Run time
setup-environment	11m 36s
checks	17s
unittest (1.18)	1m 5s
build-examples	1m 3s
unittest (1.17)	47s
check-collector-module-version	5s
correctness-metrics	3m 47s
correctness-traces	3m 39s
integration-tests	8m 28s
lint	16s
cross-compile	0s
build-package	0s
windows-msi	0s
publish-stable	0s
publish-dev	0s
publish-check	0s
	31m 3s

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