chore(deps): bump google-protobuf from 3.21.2 to 3.21.4 in /proto #1916

Job	Run time
Run buf actions	1m 12s
Run tests	2m 53s
Run race tests	1m 54s
Run lints and checks	4m 49s
Generate SDKs	3m 12s
Build CLI docs	47s
Generate changelog	0s
Generate release	0s
Draft newsletter	0s
Render version schema	0s
Send newsletter	0s
Pending approval Slack notification	0s
Release SDKs	0s
	14m 47s

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