Bump github.com/cloudflare/circl from 1.3.3 to 1.3.7 in /sdk

Bumps [github.com/cloudflare/circl](https://github.com/cloudflare/circl) from 1.3.3 to 1.3.7.
- [Release notes](https://github.com/cloudflare/circl/releases)
- [Commits](cloudflare/circl@v1.3.3...v1.3.7)

---
updated-dependencies:
- dependency-name: github.com/cloudflare/circl
  dependency-type: indirect
...

Signed-off-by: dependabot[bot] <[email protected]>