Bump lettre to 0.10.0-rc.6

Cargo.lock

@@ -1455,9 +1455,9 @@ checksum = "830d08ce1d1d941e6b30645f1a0eb5643013d835ce3779a5fc208261dbe10f55"
 
 [[package]]
 name = "lettre"
-version = "0.10.0-rc.5"
+version = "0.10.0-rc.6"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "5144148f337be14dabfc0f0d85b691a68ac6c77ef22a5c47c5504b70a7c9fcf3"
+checksum = "2f6c70001f7ee6c93b6687a06607c7a38f9a7ae460139a496c23da21e95bc289"
 dependencies = [
  "base64",
  "email-encoding",

Cargo.toml

@@ -107,7 +107,7 @@ webauthn-rs = "0.3.2"
 url = "2.2.2"
 
 # Email libraries
-lettre = { version = "0.10.0-rc.5", features = ["smtp-transport", "builder", "serde", "native-tls", "hostname", "tracing"], default-features = false }
+lettre = { version = "0.10.0-rc.6", features = ["smtp-transport", "builder", "serde", "native-tls", "hostname", "tracing"], default-features = false }
 idna = "0.2.3" # Punycode conversion
 percent-encoding = "2.1.0" # URL encoding library used for URL's in the emails