Update Rust crate rcgen to 0.14.6

Author: oxide-renovate[bot]

Cargo.lock

@@ -697,7 +697,7 @@ ratatui = "0.29.0"
 rats-corim = { git = "https://github.com/oxidecomputer/rats-corim.git", rev = "f0d5d5168d3d31487a56df32c676b0c6240bcc6b" }
 raw-cpuid = { git = "https://github.com/oxidecomputer/rust-cpuid.git", rev = "a4cf01df76f35430ff5d39dc2fe470bcb953503b" }
 rayon = "1.10"
-rcgen = "0.12.1"
+rcgen = "0.14.6"
 rdb-types = { git = "https://github.com/oxidecomputer/maghemite", rev = "205b3ccf75b527ac7a565285fdcc0c78f4fcee95" }
 reconfigurator-cli = { path = "dev-tools/reconfigurator-cli" }
 reedline = "0.40.0"

Cargo.toml

@@ -116,6 +116,7 @@ reqwest = { version = "0.12.24", features = ["blocking", "cookies", "json", "rus
 rsa = { version = "0.9.8", features = ["serde", "sha2"] }
 rustc-hash = { version = "2.1.1" }
 rustls = { version = "0.23.19", features = ["ring"] }
+rustls-pki-types = { version = "1.10.0", features = ["std"] }
 rustls-webpki = { version = "0.102.8", default-features = false, features = ["aws_lc_rs", "ring", "std"] }
 schemars = { version = "0.8.22", features = ["bytes", "chrono", "semver", "url", "uuid1"] }
 scopeguard = { version = "1.2.0" }
@@ -258,6 +259,7 @@ reqwest = { version = "0.12.24", features = ["blocking", "cookies", "json", "rus
 rsa = { version = "0.9.8", features = ["serde", "sha2"] }
 rustc-hash = { version = "2.1.1" }
 rustls = { version = "0.23.19", features = ["ring"] }
+rustls-pki-types = { version = "1.10.0", features = ["std"] }
 rustls-webpki = { version = "0.102.8", default-features = false, features = ["aws_lc_rs", "ring", "std"] }
 schemars = { version = "0.8.22", features = ["bytes", "chrono", "semver", "url", "uuid1"] }
 scopeguard = { version = "1.2.0" }