fastly 0.7.3

Fastly Compute@Edge API
Documentation
## Report a security issue

The `fastly` project team welcomes security reports and is committed to providing prompt attention to security issues. Security issues should be reported privately via [Fastly’s security issue reporting process](https://www.fastly.com/security/report-security-issue).

## Security advisories

Remediation of security vulnerabilities is prioritized by the project team. The project team endeavors to coordinate remediation with third-party stakeholders, and is committed to transparency in the disclosure process. The team announces security issues via [RustSec](https://rustsec.org/advisories/) on a best-effort basis.

Note that communications related to security issues in Fastly-maintained OSS as described here are distinct from [Fastly Security Advisories](https://www.fastly.com/security-advisories).