chore(deps): Bump immutable from 5.1.5 to 5.1.9 in /web #77

Job	Run time
Analyze (csharp)	2m 19s
Analyze (javascript-typescript)	59s
Analyze (go)	59s
Analyze (python)	50s
Analyze (rust)	2m 5s
Analyze (actions)	40s
	7m 52s

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