fix(rootwallet): retry wallet update with other clients on failure

[barnabasbusa]

Try to update the root wallet state using all available clients in the client pool. This ensures that if one client fails to update the state (e.g., due to temporary network issues or unavailability), the wallet initialization process can succeed by using another working client. If all clients fail, an error indicating the failure of all attempts is returned.

fixing startup bug like:

panic: failed to init root wallet: Post "https://eth:***@rpc.lighthouse-reth-1.perf-devnet-2.ethpandaops.io": context deadline exceeded

goroutine 1 [running]:
main.main()
	/home/runner/work/spamoor/spamoor/cmd/spamoor-daemon/main.go:179 +0x1393