Bump heapless 0.9.1 -> 0.9.2

Summary:
Automated semver-compatible version bump.
bypass-github-export-checks

Reviewed By: dtolnay

Differential Revision: D94686361

fbshipit-source-id: 23d33889e4a968574e10fe979729f813c96a71ee

Author: generatedunixname2066905484085733

hphp/hack/src/Cargo.lock

@@ -11,7 +11,7 @@ license = "MIT"
 path = "lib.rs"
 
 [dependencies]
-heapless = "0.9.1"
+heapless = "0.9.2"
 operator = { version = "0.0.0", path = "../cargo/operator" }
 parser_core_types = { version = "0.0.0", path = "../cargo/core_types" }
 smallvec = { version = "1.15", features = ["impl_bincode", "serde", "specialization", "union"] }