fix(x/staking): add missing error check in simulation operations test (#25421)

Co-authored-by: Alex | Cosmos Labs <alex@cosmoslabs.io>

x/staking/simulation/operations_test.go

@@ -147,8 +147,8 @@ func (s *SimTestSuite) TestWeightedOperations() {
 	}
 
 	for i, w := range weightedOps {
-		operationMsg, _, _ := w.Op()(s.r, s.app.BaseApp, s.ctx, s.accounts, s.ctx.ChainID())
-		// require.NoError(t, err) // TODO check if it should be NoError
+		operationMsg, _, err := w.Op()(s.r, s.app.BaseApp, s.ctx, s.accounts, s.ctx.ChainID())
+		s.Require().NoError(err)
 
 		// the following checks are very much dependent from the ordering of the output given
 		// by WeightedOperations. if the ordering in WeightedOperations changes some tests