Bump lodash from 4.17.21 to 4.18.1 in /samples/spa-client #3919

Job	Run time
Build (windows-latest, 17) / Build	1m 32s
Test Against Snapshots / Test	1m 34s
Build (ubuntu-latest, 17) / Build	43s
Deploy Artifacts / Deploy Artifacts	0s
Deploy Docs / Deploy Docs	-1s
Perform Release	-1s
	3m 47s

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