chore(lee,lez): bump h2 to fix RUSTSEC-2026-0258, run cargo fmt, rebuild artifacts

h2 0.4.14 had an unbounded empty DATA frames flaw (low severity); bumped to
0.4.18 via cargo update -p h2. cargo deny check now passes clean
(advisories/bans/licenses/sources all ok).

Rebuild every guest artifact and the prebuilt test fixture to match the
dependency bump.

Cargo.lock

@@ -2306,7 +2306,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "ccc2776f0c61eca1ca32528f85548abd1a4be8fb53d1b21c013e4f18da1e7090"
 dependencies = [
  "data-encoding",
- "syn 2.0.117",
+ "syn 1.0.109",
 ]
 
 [[package]]
@@ -2492,7 +2492,7 @@ dependencies = [
  "libc",
  "option-ext",
  "redox_users",
- "windows-sys 0.61.2",
+ "windows-sys 0.59.0",
 ]
 
 [[package]]
@@ -2860,7 +2860,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "39cab71617ae0d63f51a36d69f866391735b51691dbda63cf6f96d042b63efeb"
 dependencies = [
  "libc",
- "windows-sys 0.61.2",
+ "windows-sys 0.52.0",
 ]
 
 [[package]]
@@ -3485,9 +3485,9 @@ checksum = "17e2ac29387b1aa07a1e448f7bb4f35b500787971e965b02842b900afa5c8f6f"
 
 [[package]]
 name = "h2"
-version = "0.4.14"
+version = "0.4.18"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "171fefbc92fe4a4de27e0698d6a5b392d6a0e333506bc49133760b3bcf948733"
+checksum = "839c0e8a181239723652be9062bb56ca5bf5f64011f73b623f6f4fc59086a228"
 dependencies = [
  "atomic-waker",
  "bytes",
@@ -3943,7 +3943,7 @@ dependencies = [
  "libc",
  "percent-encoding",
  "pin-project-lite",
- "socket2 0.6.4",
+ "socket2 0.5.10",
  "tokio",
  "tower-service",
  "tracing",
@@ -7143,7 +7143,7 @@ version = "0.50.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "7957b9740744892f114936ab4a57b3f487491bbeafaf8083688b16841a4240e5"
 dependencies = [
- "windows-sys 0.61.2",
+ "windows-sys 0.59.0",
 ]
 
 [[package]]
@@ -8197,7 +8197,7 @@ dependencies = [
  "quinn-udp",
  "rustc-hash",
  "rustls",
- "socket2 0.6.4",
+ "socket2 0.5.10",
  "thiserror 2.0.18",
  "tokio",
  "tracing",
@@ -8235,7 +8235,7 @@ dependencies = [
  "cfg_aliases",
  "libc",
  "once_cell",
- "socket2 0.6.4",
+ "socket2 0.5.10",
  "tracing",
  "windows-sys 0.59.0",
 ]
@@ -9193,7 +9193,7 @@ dependencies = [
  "errno",
  "libc",
  "linux-raw-sys",
- "windows-sys 0.61.2",
+ "windows-sys 0.52.0",
 ]
 
 [[package]]
@@ -10465,7 +10465,7 @@ dependencies = [
  "getrandom 0.4.2",
  "once_cell",
  "rustix",
- "windows-sys 0.61.2",
+ "windows-sys 0.52.0",
 ]
 
 [[package]]
@@ -11924,7 +11924,7 @@ version = "0.1.11"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "c2a7b1c03c876122aa43f3020e6c3c3ee5c05081c9a00739faf7503aeba10d22"
 dependencies = [
- "windows-sys 0.61.2",
+ "windows-sys 0.52.0",
 ]
 
 [[package]]

lee/state_machine/core/src/program/mod.rs

@@ -698,10 +698,7 @@ pub enum CallKind {
 /// The latter goes via that program's own `update_from_diff`.
 pub enum ProgramCall<T> {
     Execute(ProgramInput<T>, InstructionData),
-    UpdateFromDiff {
-        pre_state: Account,
-        diff_data: Data,
-    },
+    UpdateFromDiff { pre_state: Account, diff_data: Data },
 }
 
 /// Journal committed by an `UpdateFromDiff` invocation.