Update Rust crate qrcode-generator to 4.1.8 (#104)

This PR contains the following updates:

| Package | Type | Update | Change |
|---|---|---|---|
| [qrcode-generator](https://magiclen.org/qrcode-generator) ([source](https://github.com/magiclen/qrcode-generator)) | dependencies | patch | `4.1.7` -> `4.1.8` |

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### Release Notes

<details>
<summary>magiclen/qrcode-generator</summary>

### [`v4.1.8`](https://github.com/magiclen/qrcode-generator/compare/v4.1.7...v4.1.8)

[Compare Source](https://github.com/magiclen/qrcode-generator/compare/v4.1.7...v4.1.8)

</details>

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Reviewed-on: #104

Cargo.lock

@@ -2039,9 +2039,9 @@ dependencies = [
 
 [[package]]
 name = "qrcode-generator"
-version = "4.1.7"
+version = "4.1.8"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "72b934d178dc39cff2837fbcb9c1e7901367cb1ce02dc4488cdc877460a51c59"
+checksum = "fc713c23eb7e1a5f18b84e72be88b82a617ee25783a524a38f0caa4c986b2d76"
 dependencies = [
  "html-escape",
  "image",

Cargo.toml

@@ -31,7 +31,7 @@ sha2 = "0.10.6"
 lazy-regex = "2.4.1"
 totp_rfc6238 = "0.5.1"
 base32 = "0.4.0"
-qrcode-generator = "4.1.7"
+qrcode-generator = "4.1.8"
 webauthn-rs = { version = "0.4.8", features = ["danger-allow-state-serialisation"] }
 url = "2.3.1"
 aes-gcm = { version = "0.10.1", features = ["aes"] }