feat!(gov): add proposer address to hooks

[vladjdk]

Adds the proposer address to governance submit proposal hooks.

Requires #25616 to be merged first.

[codecov]

Codecov Report

❌ Patch coverage is 66.66667% with 1 line in your changes missing coverage. Please review.
✅ Project coverage is 70.33%. Comparing base (d235bc4) to head (3b633b7).
⚠️ Report is 2 commits behind head on main.

Files with missing lines	Patch %	Lines
x/gov/types/hooks.go	50.00%	1 Missing ⚠️

Additional details and impacted files

@@           Coverage Diff           @@
##             main   #25617   +/-   ##
=======================================
  Coverage   70.32%   70.33%           
=======================================
  Files         821      821           
  Lines       53771    53771           
=======================================
+ Hits        37816    37818    +2     
+ Misses      15955    15953    -2     

Files with missing lines	Coverage Δ
x/gov/keeper/proposal.go	83.09% <100.00%> (ø)
x/gov/types/expected_keepers.go	0.00% <ø> (ø)
x/gov/types/hooks.go	74.07% <50.00%> (ø)

... and 1 file with indirect coverage changes

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