feat: better upgrade registration

[robert-zaremba]

Added an util function to simplify upgrade registration even more.

[gsk967]

LGTM

[codecov]

Codecov Report

Merging #2024 (259bd52) into main (7f05ad4) will decrease coverage by 6.88%.
The diff coverage is 45.17%.

@@            Coverage Diff             @@
##             main    #2024      +/-   ##
==========================================
- Coverage   75.38%   68.51%   -6.88%     
==========================================
  Files         100      118      +18     
  Lines        8025     9349    +1324     
==========================================
+ Hits         6050     6405     +355     
- Misses       1589     2469     +880     
- Partials      386      475      +89     

Impacted Files	Coverage Δ
util/store/unmarshal.go	0.00% <0.00%> (ø)
x/incentive/codec.go	47.82% <ø> (+9.89%)	⬆️
x/incentive/keeper/grpc_query.go	0.00% <0.00%> (ø)
x/incentive/keeper/hooks.go	0.00% <0.00%> (ø)
x/incentive/keeper/invariants.go	0.00% <0.00%> (ø)
x/leverage/keeper/incentive.go	0.00% <0.00%> (ø)
x/oracle/keeper/hooks.go	95.65% <ø> (ø)
x/uibc/quota/keeper/ics4_wrapper.go	0.00% <ø> (ø)
x/incentive/keeper/genesis.go	1.61% <1.61%> (ø)
x/incentive/genesis.go	10.32% <3.70%> (-3.01%)	⬇️
... and 30 more

... and 2 files with indirect coverage changes