Bump fetch-mock from 11.1.5 to 12.1.0 in /webui #2137

Job	Run time
api update and upload dependency lock file	40s
define container image build context variables	1s
pipeline/seq_retrieval update and upload dependency lock file	26s
shared_aws py-package update and upload dependency lock file	30s
webui update and upload dependency lock file	27s
report-no-deps-lock-updates-label	0s
pipeline/alignment container-image build	57s
pipeline/seq_retrieval code checks	34s
pipeline/seq_retrieval container-image build	1m 38s
webUI code checks	35s
webUI container-image build	1m 57s
shared_aws py-package code checks	59s
API code checks	21s
API container-image build	1m 14s
pipeline/alignment unit testing	24s
shared_aws python package build	14s
API unit and integration testing	1m 10s
pipeline/workflow integration testing	3m 38s
API container integration testing (AWS batch execution)	4m 45s
end-to-end testing	3m 3s
webui/aws_infra update and upload dependency lock file	33s
shared_aws aws_infra update and upload dependency lock file	33s
pipeline/aws_infra update and upload dependency lock file	34s
api/aws_infra update and upload dependency lock file	31s
webui/aws_infra code checks	1m 20s
api/aws_infra code checks	1m 51s
shared_aws infra code checks	58s
pipeline/aws_infra code checks	1m 1s
stage-deps-lock-updates	20s
	31m 14s

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