fix ATOM blocktime

[cipig]

block time is 7 seconds, not 7 minutes: https://www.mintscan.io/cosmos

[tonymorony]

it's a different field which actually using by API https://github.com/KomodoPlatform/air_dex/pull/677#issuecomment-1294829741
P.S. it's quite confusing CC [ @ozkanonur @artemii235 ]

[cipig]

PLG20 has "avg_blocktime": 0.03
ERC20 has "avg_blocktime": 0.25
so for ATOM this value means something different?

[tonymorony]

avg_blocktime != avg_block_time
we can actually rename avg_blocktime (which I've added couple years ago with intention to improve swap duration estimates in the interfaces) to make it less confusing because it's not using anywhere yet afaik

[onur-ozkan]

P.S. it's quite confusing CC [ @ozkanonur @artemii235 ]

I agree. But seems like it's not a blocker for anything. I will fix the confusion in KomodoPlatform/komodo-defi-framework#1526