fix: bump cosmos sdk to `v0.50.11` #601

Job	Run time
prepare	31s
build	2m 53s
test (TestCCTP_DepositForBurn)	4m 23s
test (TestCCTP_DepositForBurnWithCaller)	4m 28s
test (TestCCTP_ReceiveMessage)	4m 34s
test (TestCCTP_ReceiveMessageWithCaller)	4m 51s
test (TestCCTP_ReplaceDepositForBurn)	4m 33s
test (TestCCTP_UpdateOwner)	3m 41s
test (TestCCTP_UpdateAttesterManager)	3m 39s
test (TestCCTP_UpdatePauser)	3m 56s
test (TestCCTP_UpdateTokenController)	3m 33s
test (TestConformance)	5m 38s
test (TestFiatTFUpdateOwner)	4m 20s
test (TestFiatTFAcceptOwner)	4m 26s
test (TestFiatTFUpdateMasterMinter)	4m 33s
test (TestFiatTFConfigureMinterController)	5m 20s
test (TestFiatTFRemoveMinterController)	4m 21s
test (TestFiatTFConfigureMinter)	4m 19s
test (TestFiatTFRemoveMinter)	4m 24s
test (TestFiatTFUpdatePauser)	4m 26s
test (TestFiatTFPause)	4m 1s
test (TestFiatTFUnpause)	4m 16s
test (TestFiatTFUpdateBlacklister)	4m 29s
test (TestFiatTFBlacklist)	4m 20s
test (TestFiatTFUnblacklist)	4m 21s
test (TestFiatTFMint)	4m 39s
test (TestFiatTFBurn)	4m 16s
test (TestFiatTFAuth)	4m 3s
test (TestFiatTFAuthzGrant)	4m 29s
test (TestFiatTFAuthzSend)	4m 49s
test (TestFiatTFBankSend)	4m 16s
test (TestFiatTFIBCOut)	4m 57s
test (TestFiatTFIBCIn)	5m 43s
test (TestRestrictedModules)	3m 30s
test (TestChainUpgrade)	3m 6s
	2h 28m 4s

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