Unexpected Execution Time Discrepancy in Test Case "./pipex infile 'sleep 3' 'sleep 1' outfile"

[Memli-Sheremeti]

The current implementation of the pipex project exhibits unexpected behavior.
In the test case :

time ./pipex infile "'sleep 3" "sleep 1" outfile

---

bash :
input : time < infile sleep 3 | sleep 1 > outfile

According to the expected behavior specified by Bash, the execution should take a total of 3 seconds, corresponding to the longest duration among the given commands, rather than the sum of both durations (4 seconds).

[SuperiChili]

time ./pipex infile "sleep 2" "sleep 1" outfile
./pipex infile "sleep 2" "sleep 1" outfile 0.00s user 0.00s system 0% cpu 1.009 total

the program is taking 1 sec instead should take the higher value from sleep.