build(deps): bump sec1 from 0.7.2 to 0.7.3 (#139)

Bumps [sec1](https://github.com/RustCrypto/formats) from 0.7.2 to 0.7.3.
- [Commits](RustCrypto/formats@sec1/v0.7.2...sec1/v0.7.3)

---
updated-dependencies:
- dependency-name: sec1
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

Signed-off-by: dependabot[bot] <[email protected]>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>