Bump go.uber.org/zap from 1.21.0 to 1.26.0 in /extension/pprofextension #1299

Job	Run time
setup-environment	18m 8s
lint	21s
build-examples	1m 43s
checks	18s
correctness-metrics	3m 55s
check-collector-module-version	7s
correctness-traces	3m 42s
integration-tests	7m 18s
unittest (1.18)	53s
unittest (1.17)	45s
cross-compile	0s
build-package	0s
windows-msi	0s
publish-stable	0s
publish-check	0s
publish-dev	0s
	37m 10s

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