Bump go.uber.org/zap from 1.21.0 to 1.26.0 in /exporter/jaegerexporter #1338

Job	Run time
setup-environment	6m 7s
check-collector-module-version	6s
checks	1m 22s
correctness-metrics	38s
build-examples	1m 4s
correctness-traces	50s
integration-tests	7m 51s
lint	1m 34s
unittest (1.18)	52s
unittest (1.17)	56s
cross-compile	0s
windows-msi	0s
build-package	0s
publish-check	0s
publish-stable	0s
publish-dev	0s
	21m 20s

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