feat: automatically clear blacklisted collateral

[toteki]

Description

closes: #1223

---

Author Checklist

All items are required. Please add a note to the item if the item is not applicable and
please add links to any relevant follow up issues.

I have...

• included the correct type prefix in the PR title
• added ! to the type prefix if API or client breaking change
• added appropriate labels to the PR
• targeted the correct branch (see PR Targeting)
• provided a link to the relevant issue or specification
• added a changelog entry to CHANGELOG.md
• included comments for documenting Go code
• updated the relevant documentation or specification
• reviewed "Files changed" and left comments if necessary
• confirmed all CI checks have passed

Reviewers Checklist

All items are required. Please add a note if the item is not applicable and please add
your handle next to the items reviewed if you only reviewed selected items.

I have...

• confirmed the correct type prefix in the PR title
• confirmed all author checklist items have been addressed
• reviewed state machine logic
• reviewed API design and naming
• reviewed documentation is accurate
• reviewed tests and test coverage
• manually tested (if applicable)

[codecov-commenter]

Codecov Report

Merging #1343 (c496447) into main (b3a2e79) will decrease coverage by 0.18%.
The diff coverage is 68.75%.

@@            Coverage Diff             @@
##             main    #1343      +/-   ##
==========================================
- Coverage   52.47%   52.29%   -0.19%     
==========================================
  Files          70       70              
  Lines        6878     6812      -66     
==========================================
- Hits         3609     3562      -47     
+ Misses       2990     2976      -14     
+ Partials      279      274       -5     

Impacted Files	Coverage Δ
x/leverage/keeper/filter.go	100.00% <ø> (ø)
x/leverage/keeper/genesis.go	3.00% <0.00%> (+0.41%)	⬆️
x/leverage/keeper/oracle.go	63.07% <0.00%> (+2.78%)	⬆️
x/leverage/keeper/supply.go	39.28% <0.00%> (ø)
x/leverage/keeper/iter.go	54.08% <33.33%> (-5.62%)	⬇️
x/leverage/keeper/reserves.go	67.07% <57.14%> (-4.20%)	⬇️
x/leverage/keeper/interest.go	68.18% <66.66%> (+0.68%)	⬆️
x/leverage/keeper/store.go	66.24% <70.86%> (-2.13%)	⬇️
x/leverage/keeper/keeper.go	65.79% <71.42%> (-0.13%)	⬇️
x/leverage/keeper/validate.go	73.52% <76.00%> (+11.50%)	⬆️
... and 9 more

[RafilxTenfen]

utACK

But I do have a question, why do we attempt to SweepBadDebts at the end of every block and not like at each some amount of blocks?

[toteki]

Right now we don't have any Epoch-like stuff in leverage module, but since bad debt sweeping doesn't have to be instantaneous we could add it.

For example, using BlockHeight() % 100 == 0 would result in a sweep every 10 minutes, and would probably be unimportant enough that we wouldn't need to add a parameter for the 100.