build(deps): bump syn from 1.0.98 to 1.0.99

Bumps [syn](https://github.com/dtolnay/syn) from 1.0.98 to 1.0.99.
- [Release notes](https://github.com/dtolnay/syn/releases)
- [Commits](https://github.com/dtolnay/syn/compare/1.0.98...1.0.99)

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

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

Cargo.lock

@@ -3540,9 +3540,9 @@ dependencies = [
 
 [[package]]
 name = "syn"
-version = "1.0.98"
+version = "1.0.99"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "c50aef8a904de4c23c788f104b7dddc7d6f79c647c7c8ce4cc8f73eb0ca773dd"
+checksum = "58dbef6ec655055e20b86b15a8cc6d439cca19b667537ac6a1369572d151ab13"
 dependencies = [
  "proc-macro2",
  "quote",

core/macros/Cargo.toml

@@ -9,4 +9,4 @@ proc-macro = true
 
 [dependencies]
 quote = "1.0.21"
-syn = { version = "1.0.98", features = ["full"] }
+syn = { version = "1.0.99", features = ["full"] }