Bump go.uber.org/zap from 1.21.0 to 1.26.0 in /extension/httpforwarder #1432

Job	Run time
setup-environment	16m 14s
checks	24s
unittest (1.18)	51s
check-collector-module-version	5s
build-examples	2m 40s
correctness-metrics	2m 42s
unittest (1.17)	56s
correctness-traces	4m 4s
integration-tests	8m 49s
lint	17s
cross-compile	0s
build-package	0s
windows-msi	0s
publish-check	0s
publish-stable	0s
publish-dev	0s
	37m 2s

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