Bump qrcodegen from 1.7.0 to 1.8.0

Bumps [qrcodegen](https://github.com/nayuki/QR-Code-generator) from 1.7.0 to 1.8.0.
- [Release notes](https://github.com/nayuki/QR-Code-generator/releases)
- [Commits](https://github.com/nayuki/QR-Code-generator/compare/v1.7.0...v1.8.0)

---
updated-dependencies:
- dependency-name: qrcodegen
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

Signed-off-by: dependabot[bot] <support@github.com>

Cargo.lock

@@ -1827,9 +1827,9 @@ dependencies = [
 
 [[package]]
 name = "qrcodegen"
-version = "1.7.0"
+version = "1.8.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "135e6754eed8ca897dd70584d895e72e36860b3e163b6bcedce48571cbaef343"
+checksum = "4339fc7a1021c9c1621d87f5e3505f2805c8c105420ba2f2a4df86814590c142"
 
 [[package]]
 name = "quote"