Update the filecheck dependency (#1348)

Removes an edge towards the `synstructure` dependency in our dependency
graph which, if removed entirely, is hoped to reduce build times locally
and on CI as you switch between `cargo build` and `cargo test` because
deep dependencies like `syn` won't have their features alternating back
and forth.

Cargo.lock

@@ -857,28 +857,6 @@ dependencies = [
  "thiserror",
 ]
 
-[[package]]
-name = "failure"
-version = "0.1.6"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "f8273f13c977665c5db7eb2b99ae520952fe5ac831ae4cd09d80c4c7042b5ed9"
-dependencies = [
- "backtrace",
- "failure_derive",
-]
-
-[[package]]
-name = "failure_derive"
-version = "0.1.6"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "0bc225b78e0391e4b8683440bf2e63c2deeeb2ce5189eab46e2b68c6d3725d08"
-dependencies = [
- "proc-macro2",
- "quote",
- "syn",
- "synstructure",
-]
-
 [[package]]
 name = "fake-simd"
 version = "0.1.2"
@@ -903,13 +881,12 @@ dependencies = [
 
 [[package]]
 name = "filecheck"
-version = "0.4.0"
+version = "0.5.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "ded7985594ab426ef685362e5183168eb3b5aacc9f4e26819e8d82d224f33449"
+checksum = "2fe00b427b7c4835f8b82170eb7b9a63634376b63d73b9a9093367e82570bbaa"
 dependencies = [
- "failure",
- "failure_derive",
  "regex",
+ "thiserror",
 ]
 
 [[package]]