fix: Upgrade semver to fix ReDoS vulnerability (#11683)
## Summary
- Upgrades `semver` from 7.5.0 to 7.7.3 in `packages/create-turbo` to
fix a high-severity ReDoS vulnerability
## Details
The `semver` package versions `>=7.0.0 <7.5.2` are vulnerable to Regular
Expression Denial of Service (ReDoS). This upgrade addresses
[GHSA-c2qf-rxjj-qqgw](https://github.com/advisories/GHSA-c2qf-rxjj-qqgw).
Closes TURBO-5232
