Set default gas prices (cosmos-sdk) #599

Job	Run time
build-deb-mainnet (goleveldb)	11m 48s
build-deb-testnet (goleveldb)	14m 18s
build-deb-testnet-2004 (goleveldb)	14m 41s
native-build-cli (ubuntu-22.04)	2m 38s
native-build-cli (windows-latest)	7m 22s
native-build-cli (macos-13)	2m 58s
check-hw-tool	5m 15s
Lib-Checks	6s
MacOS-ARM64-CLI	3m 39s
publish-localsecret	11m 26s
Ubuntu-2004-CLI	2m 42s
Release	25s
	1h 17m 18s

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