chore: log v2 upgrade (#3628)

Closes #3627

## Testing

Confirmed the log shows up during an upgrade

```
4:29PM INF upgrading from app version 1 to 2
4:29PM INF executed block height=2 module=state num_invalid_txs=0 num_valid_txs=0
4:29PM INF adding a new module: interchainaccounts
4:29PM INF created new capability module=ibc name=ports/icahost
4:29PM INF port binded module=x/ibc/port port=icahost
4:29PM INF claimed capability capability=2 module=icahost name=ports/icahost
4:29PM INF adding a new module: minfee
4:29PM INF adding a new module: packetfowardmiddleware
4:29PM INF adding a new module: signal
```

app/app.go

@@ -455,8 +455,10 @@ func (app *App) EndBlocker(ctx sdk.Context, req abci.RequestEndBlock) abci.Respo
 	if currentVersion == v1 {
 		// check that we are at the height before the upgrade
 		if req.Height == app.upgradeHeightV2-1 {
+			app.BaseApp.Logger().Info(fmt.Sprintf("upgrading from app version %v to 2", currentVersion))
 			app.SetInitialAppVersionInConsensusParams(ctx, v2)
 			app.SetAppVersion(ctx, v2)
+
 			// The blobstream module was disabled in v2 so the following line
 			// removes the the params subspace for blobstream.
 			if err := app.ParamsKeeper.DeleteSubspace(blobstreamtypes.ModuleName); err != nil {