build(deps): Bump google.golang.org/grpc from 1.68.1 to 1.69.2 in /x/feegrant #76719

Job	Run time
split-test-files	19s
test-integration	6m 19s
test-clientv2	2m 58s
test-sim-nondeterminism	28s
test-core	24s
test-coretesting	25s
test-depinject	2m 5s
test-errors	28s
test-indexer-postgres	22s
test-math	37s
test-schema	33s
test-schema-testing	30s
test-simapp-v2	5m 29s
test-collections	27s
test-collections-protocodec	26s
test-confix	2m 52s
test-cosmovisor	3m 18s
test-hubl	2m 50s
test-log	30s
test-orm	2m 18s
test-store	2m 33s
test-store-v2	40s
test-x-accounts	2m 39s
test-x-accounts-base	2m 13s
test-x-accounts-lockup	2m 8s
test-x-accounts-multisig	2m 3s
test-x-circuit	2m 41s
test-x-distribution	2m 47s
test-x-feegrant	2m 43s
test-x-nft	2m 31s
test-x-protocolpool	2m 28s
test-x-tx	1m 31s
test-tools-benchmark	2m 34s
test-x-authz	2m 56s
test-x-bank	2m 54s
test-x-consensus	2m 44s
test-x-epochs	2m 39s
test-x-evidence	2m 28s
test-x-gov	2m 57s
test-x-group	3m 1s
test-x-mint	2m 46s
test-x-slashing	2m 42s
test-x-staking	2m 58s
test-x-upgrade	3m 4s
tests (00)	8m 16s
tests (01)	3m 36s
tests (02)	3m 55s
tests (03)	4m 21s
repo-analysis	2m 0s
	1h 56m 26s

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