Bump Moq from 4.20.1 to 4.20.2 in /src/DicomWebClient/Test #1172

Job	Run time
unit-test	8m 34s
calc-version	19s
CodeQL-Analyze	7m 1s
analyze	5m 53s
integration-test (AcrApi, ef)	3m 0s
integration-test (AcrApi, mongodb)	2m 44s
integration-test (DicomDimseScp, ef)	4m 48s
integration-test (DicomDimseScp, mongodb)	5m 5s
integration-test (DicomDimseScu, ef)	3m 0s
integration-test (DicomDimseScu, mongodb)	2m 59s
integration-test (DicomWebExport, ef)	3m 20s
integration-test (DicomWebExport, mongodb)	4m 8s
integration-test (DicomWebStow, ef)	5m 4s
integration-test (DicomWebStow, mongodb)	4m 38s
integration-test (HealthLevel7, ef)	4m 0s
integration-test (HealthLevel7, mongodb)	4m 27s
integration-test (Fhir, ef)	3m 27s
integration-test (Fhir, mongodb)	3m 25s
docs	3m 57s
build (ubuntu-latest)	3m 49s
build (windows-latest)	4m 38s
release	0s
	1h 28m 16s

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