Update vendored crates flagged by RustSec to their newest semver-compatible
releases with `cargo update -p <crate>@<version>`:
  bytes 1.9.0 -> 1.12.1 (RUSTSEC-2026-0007)
  h2 0.4.7 -> 0.4.19 (RUSTSEC-2026-0258)
  openssl 0.10.68 -> 0.10.81 (RUSTSEC-2025-0004, RUSTSEC-2025-0022)
  openssl-sys 0.9.104 -> 0.9.117

--- a/Cargo.lock
+++ b/Cargo.lock
@@ -70,9 +70,9 @@
 
 [[package]]
 name = "bytes"
-version = "1.9.0"
+version = "1.12.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "325918d6fe32f23b19878fe4b34794ae41fc19ddbe53b10571a4874d44ffd39b"
+checksum = "fc652a48c352aef3ea3aed32080501cf3ef6ed5da78602a020c991775b0aff04"
 
 [[package]]
 name = "cc"
@@ -285,9 +285,9 @@
 
 [[package]]
 name = "h2"
-version = "0.4.7"
+version = "0.4.19"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "ccae279728d634d083c00f6099cb58f01cc99c145b84b8be2f6c74618d79922e"
+checksum = "ef8e5e5a340588f4452631496976cf8636d4a7ecf600239fdc27615d2530bc16"
 dependencies = [
  "atomic-waker",
  "bytes",
@@ -715,15 +715,14 @@
 
 [[package]]
 name = "openssl"
-version = "0.10.68"
+version = "0.10.81"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "6174bc48f102d208783c2c84bf931bb75927a617866870de8a4ea85597f871f5"
+checksum = "77823a27f0babb03091cb9ed9ef80af3b39dbc82f97e8fa530374b7dafd87a45"
 dependencies = [
  "bitflags",
  "cfg-if",
  "foreign-types",
  "libc",
- "once_cell",
  "openssl-macros",
  "openssl-sys",
 ]
@@ -756,9 +755,9 @@
 
 [[package]]
 name = "openssl-sys"
-version = "0.9.104"
+version = "0.9.117"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "45abf306cbf99debc8195b66b7346498d7b10c210de50418b5ccd7ceba08c741"
+checksum = "b47e7e6bb2c38cd930d25a23b40fa52e068c10e85f3e03a7f5ba5aaca5713695"
 dependencies = [
  "cc",
  "libc",