stop printing all commands in version-sync script (#1390)
### Summary
Remove -x in version-sync script to stop printing all commands and
arguments and improve readability.
### Test
`make check` and `make check-version` no longer print all the commands
and arguments.
(unstructured) shreyanid@Shreyas-MBP-2 unstructured % make check-version
scripts/version-sync.sh -c \
-f "unstructured/__version__.py" semver
From github.com:Unstructured-IO/unstructured
* branch main -> FETCH_HEAD
version sync would make no changes to unstructured/__version__.py.
