chore: update plan name for v3.2 (#1618)

## Description

closes: #XXXX

---

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- [ ] included the correct [type prefix](https://github.com/commitizen/conventional-commit-types/blob/v3.0.0/index.json) in the PR title
- [ ] added `!` to the type prefix if API or client breaking change
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- [ ] confirmed the correct [type prefix](https://github.com/commitizen/conventional-commit-types/blob/v3.0.0/index.json) in the PR title
- [ ] confirmed all author checklist items have been addressed
- [ ] reviewed state machine logic
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Author: robert-zaremba

app/upgrades.go

@@ -29,7 +29,7 @@ func (app UmeeApp) RegisterUpgradeHandlers(experimental bool) {
 
 // performs upgrade from v3.1 -> v3.2
 func (app *UmeeApp) registerV3_2Upgrade(_ upgradetypes.Plan) {
-	const planName = "v3.2.0"
+	const planName = "v3.2"
 	app.UpgradeKeeper.SetUpgradeHandler(
 		planName,
 		func(ctx sdk.Context, plan upgradetypes.Plan, fromVM module.VersionMap) (module.VersionMap, error) {