docs: fix typo (#4182)

Changes Made:
1. test/util/genesis/accounts.go:
- Old: "validitor" -> New: "validator"
- Location: Comment before ValidateBasic function

2. test/txs/stake.go:
- Old: "redelgated" -> New: "redelegated" 
- Location: Comment in stake sequence function

Reason:
Fixed misspellings in code comments to improve readability and maintain
consistent terminology. These are documentation-only changes with no
functional impact.

test/txsim/stake.go

@@ -80,7 +80,7 @@ func (s *StakeSequence) Next(ctx context.Context, querier grpc.ClientConn, rand
 						DelegatorAddress:    s.account.String(),
 						ValidatorSrcAddress: s.delegatedTo,
 						ValidatorDstAddress: val.OperatorAddress,
-						// NOTE: only the initial stake is redelgated (not the entire balance)
+						// NOTE: only the initial stake is redelegated (not the entire balance)
 						Amount: types.NewInt64Coin(appconsts.BondDenom, int64(s.initialStake)),
 					},
 				},