chore(deps): update dependency mkdocs-material to v9.5.20 #4169

Job	Run time
Backend Server Tests / tests (sqlite)	5m 49s
Backend Server Tests / tests (postgres)	6m 19s
Trivy Container Scanning / Build and Scan Container	3m 26s
Frontend and End-to-End Tests / build	2m 9s
Frontend and End-to-End Tests / lint	2m 14s
	19m 57s

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