Bump delegate from 0.13.3 to 0.13.4

---
updated-dependencies:
- dependency-name: delegate
  dependency-version: 0.13.4
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

Signed-off-by: dependabot[bot] <support@github.com>

Cargo.lock

@@ -294,9 +294,9 @@ dependencies = [
 
 [[package]]
 name = "delegate"
-version = "0.13.3"
+version = "0.13.4"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "b9b6483c2bbed26f97861cf57651d4f2b731964a28cd2257f934a4b452480d21"
+checksum = "6178a82cf56c836a3ba61a7935cdb1c49bfaa6fa4327cd5bf554a503087de26b"
 dependencies = [
  "proc-macro2",
  "quote",

cpp/Cargo.toml

@@ -6,7 +6,7 @@ license = "GPL-3.0-or-later"
 
 [dependencies]
 cxx = { version = "1.0", features = ["c++17"] }
-delegate = "0.13.2"
+delegate = "0.13.4"
 libloot = { path = ".." }
 libloot-ffi-errors = { path = "../ffi-errors" }