Remove unnecessary dependency on 'webpki'

Cargo.lock

@@ -2230,7 +2230,7 @@ dependencies = [
  "log",
  "ring",
  "sct",
- "webpki 0.22.0",
+ "webpki",
 ]
 
 [[package]]
@@ -2801,7 +2801,7 @@ checksum = "4151fda0cf2798550ad0b34bcfc9b9dcc2a9d2471c895c68f3a8818e54f2389e"
 dependencies = [
  "rustls",
  "tokio",
- "webpki 0.22.0",
+ "webpki",
 ]
 
 [[package]]
@@ -3209,16 +3209,6 @@ dependencies = [
  "wasm-bindgen",
 ]
 
-[[package]]
-name = "webpki"
-version = "0.21.4"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "b8e38c0608262c46d4a56202ebabdeb094cef7e560ca7a226c6bf055188aa4ea"
-dependencies = [
- "ring",
- "untrusted",
-]
-
 [[package]]
 name = "webpki"
 version = "0.22.0"
@@ -3235,7 +3225,7 @@ version = "0.22.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "552ceb903e957524388c4d3475725ff2c8b7960922063af6ce53c9a43da07449"
 dependencies = [
- "webpki 0.22.0",
+ "webpki",
 ]
 
 [[package]]
@@ -3402,7 +3392,6 @@ dependencies = [
  "tokio",
  "tracing",
  "tracing-subscriber",
- "webpki 0.21.4",
  "workspace_hack",
  "zenith_metrics",
 ]

zenith_utils/Cargo.toml

@@ -37,7 +37,6 @@ byteorder = "1.4.3"
 bytes = "1.0.1"
 hex-literal = "0.3"
 tempfile = "3.2"
-webpki = "0.21"
 criterion = "0.3"
 rustls-pemfile = "0.2.1"