Bump go.uber.org/zap from 1.21.0 to 1.26.0 in /processor/tailsamplingprocessor #1301

Job	Run time
setup-environment	14m 10s
check-collector-module-version	4s
lint	1m 37s
build-examples	1m 20s
checks	54s
correctness-metrics	3m 1s
correctness-traces	6m 27s
integration-tests	7m 59s
unittest (1.18)	56s
unittest (1.17)	1m 15s
cross-compile	0s
windows-msi	0s
build-package	0s
publish-check	0s
publish-stable	0s
publish-dev	0s
	37m 43s

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