deps(agentapi): bump google.golang.org/grpc from 1.68.1 to 1.69.2 in /agentapi #4234

Job	Run time
Flutter integration tests (windows)	7m 47s
C++ Quality Checks	1m 55s
Flutter Quality checks (ubuntu, p4w_ms_store)	1m 36s
Go Quality checks (ubuntu, agentapi)	2m 11s
Flutter Quality checks (ubuntu, ubuntupro)	3m 17s
Go Quality checks (ubuntu, contractsapi)	1m 28s
Flutter Quality checks (windows, p4w_ms_store)	3m 5s
Go Quality checks (ubuntu, mocks)	1m 39s
Flutter Quality checks (windows, ubuntupro)	5m 47s
Go Quality checks (ubuntu, storeapi/go-wrapper/microsoftstore)	1m 34s
Go Quality checks (ubuntu, windows-agent)	1m 43s
Go Quality checks (ubuntu, wsl-pro-service)	1m 41s
Go Quality checks (ubuntu, common)	1m 42s
Run Go tests with mocks (ubuntu, windows-agent)	8m 1s
Go Quality checks (windows, agentapi)	5m 12s
Run Go tests with mocks (ubuntu, wsl-pro-service)	4m 11s
Go Quality checks (windows, contractsapi)	5m 7s
Run Go tests with mocks (ubuntu, common)	1m 19s
Go Quality checks (windows, mocks)	3m 51s
Run Go tests with mocks (windows, storeapi/go-wrapper/microsoftstore)	2m 55s
Run Go tests with mocks (windows, windows-agent)	5m 23s
Go Quality checks (windows, storeapi/go-wrapper/microsoftstore)	3m 30s
Run Go tests with mocks (windows, common)	1m 36s
Go Quality checks (windows, windows-agent)	5m 3s
Go Quality checks (windows, end-to-end)	2m 59s
Go Quality checks (windows, common)	4m 38s
	1h 29m 10s

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