bump to v12

[jhernandezb]

No description provided.

[codecov]

Codecov Report

Patch and project coverage have no change.

Comparison is base (080e610) 10.94% compared to head (66801b5) 10.94%.

Additional details and impacted files

@@              Coverage Diff               @@
##           release/v12.x     #868   +/-   ##
==============================================
  Coverage          10.94%   10.94%           
==============================================
  Files                123      123           
  Lines              18280    18280           
==============================================
  Hits                2001     2001           
  Misses             16142    16142           
  Partials             137      137           

Files Changed	Coverage Δ
app/ante.go	65.71% <ø> (ø)
app/app.go	86.22% <ø> (ø)
app/encoding.go	100.00% <ø> (ø)
app/upgrades.go	4.65% <ø> (ø)
app/wasm.go	100.00% <ø> (ø)
x/alloc/keeper/grpc_query.go	0.00% <ø> (ø)
x/alloc/keeper/keeper.go	79.56% <ø> (ø)
x/alloc/keeper/migrations.go	42.85% <ø> (ø)
x/alloc/keeper/msg_server.go	100.00% <ø> (ø)
.../alloc/keeper/msg_server_create_vesting_account.go	0.00% <ø> (ø)
... and 59 more

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