refactor(token-vesting): Use match to get concrete type

[Unique-Divine]

No description provided.

[codecov]

Codecov Report

Patch coverage: 91.08% and project coverage change: +4.57% 🎉

Comparison is base (20b2eba) 79.65% compared to head (7eaa7dd) 84.23%.
Report is 11 commits behind head on main.

Additional details and impacted files

@@            Coverage Diff             @@
##             main      #66      +/-   ##
==========================================
+ Coverage   79.65%   84.23%   +4.57%     
==========================================
  Files          41       39       -2     
  Lines        3161     4750    +1589     
==========================================
+ Hits         2518     4001    +1483     
- Misses        643      749     +106     

Files Changed	Coverage Δ
contracts/controller/src/msgs.rs	66.66% <ø> (+16.66%)	⬆️
contracts/shifter/src/msgs.rs	60.00% <ø> (ø)
packages/bindings/src/querier.rs	0.00% <0.00%> (ø)
packages/bindings/src/query.rs	100.00% <ø> (ø)
packages/bindings/src/state.rs	100.00% <ø> (ø)
contracts/bindings-perp/src/msg.rs	63.95% <66.66%> (-1.53%)	⬇️
contracts/token-vesting/src/contract.rs	73.41% <73.41%> (ø)
contracts/shifter/src/contract.rs	88.36% <83.09%> (+5.14%)	⬆️
contracts/controller/src/contract.rs	78.76% <90.32%> (+7.29%)	⬆️
contracts/token-vesting/src/msg.rs	93.88% <93.88%> (ø)
... and 6 more

... and 9 files with indirect coverage changes

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[Unique-Divine]

Already merged this on a different PR. This PR's no longer needed.