Cron job is not running for git pull

Question

*/1 * * * * /bin/sh $user -c 'cd /Users/viki/dev/call_register && /usr/bin/git pull origin check' > cronlog.txt

I'm using above cron job and initiated it using crontab -e command, but it is not running and no log is seen in cronlog.txt.

If I manually try the below command in terminal, it is working as expected:

bin/sh $user -c 'cd /Users/viki/dev/avient_registry && /usr/bin/git pull origin check'

If I run it as a cron job it is not working, but if run a simple echo cron job is working.