cargo: bump once_cell from 1.15.0 to 1.16.0

Bumps [once_cell](https://github.com/matklad/once_cell) from 1.15.0 to 1.16.0.
- [Release notes](https://github.com/matklad/once_cell/releases)
- [Changelog](https://github.com/matklad/once_cell/blob/master/CHANGELOG.md)
- [Commits](https://github.com/matklad/once_cell/compare/v1.15.0...v1.16.0)

---
updated-dependencies:
- dependency-name: once_cell
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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

Cargo.lock

@@ -941,9 +941,9 @@ dependencies = [
 
 [[package]]
 name = "once_cell"
-version = "1.15.0"
+version = "1.16.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "e82dad04139b71a90c080c8463fe0dc7902db5192d939bd0950f074d014339e1"
+checksum = "86f0b0d4bf799edbc74508c1e8bf170ff5f41238e5f8225603ca7caaae2b7860"
 
 [[package]]
 name = "oorandom"

lib/Cargo.toml

@@ -29,7 +29,7 @@ hex = "0.4.3"
 itertools = "0.10.5"
 lazy_static = "1.4.0"
 maplit = "1.0.2"
-once_cell = "1.15.0"
+once_cell = "1.16.0"
 pest = "2.4.0"
 pest_derive = "2.4.0"
 protobuf = { version = "3.0.1", features = ["with-bytes"] }