Bump handlebars from 4.1.4 to 4.1.6 (#10518)

Bumps [handlebars](https://github.com/sunng87/handlebars-rust) from 4.1.4 to 4.1.6.
- [Release notes](https://github.com/sunng87/handlebars-rust/releases)
- [Changelog](https://github.com/sunng87/handlebars-rust/blob/master/CHANGELOG.md)
- [Commits](https://github.com/sunng87/handlebars-rust/compare/v4.1.4...v4.1.6)

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

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

Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

substrate/Cargo.lock

@@ -2572,9 +2572,9 @@ checksum = "62aca2aba2d62b4a7f5b33f3712cb1b0692779a56fb510499d5c0aa594daeaf3"
 
 [[package]]
 name = "handlebars"
-version = "4.1.4"
+version = "4.1.6"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "e1874024f4a29f47d609014caec0b1c866f1c1eb0661a09c9733ecc4757f5f88"
+checksum = "167fa173496c9eadd8749cca6f8339ac88e248f3ad2442791d0b743318a94fc0"
 dependencies = [
  "log 0.4.14",
  "pest",

substrate/utils/frame/benchmarking-cli/Cargo.toml

@@ -28,7 +28,7 @@ codec = { version = "2.0.0", package = "parity-scale-codec" }
 structopt = "0.3.25"
 chrono = "0.4"
 serde = "1.0.132"
-handlebars = "4.1.4"
+handlebars = "4.1.6"
 Inflector = "0.11.4"
 linked-hash-map = "0.5.4"
 log = "0.4.8"