build(deps): bump swift-syntax from 603.0.2 to 604.0.0

Bumps [swift-syntax](https://github.com/swiftlang/swift-syntax) from 603.0.2 to 604.0.0.
- [Release notes](https://github.com/swiftlang/swift-syntax/releases)
- [Changelog](https://github.com/swiftlang/swift-syntax/blob/main/Changelog.md)
- [Commits](swiftlang/swift-syntax@603.0.2...604.0.0)

---
updated-dependencies:
- dependency-name: swift-syntax
  dependency-version: 604.0.0
  dependency-type: direct:production
  update-type: version-update:semver-major
...

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

Author: dependabot[bot]

MODULE.bazel

@@ -32,7 +32,7 @@ bazel_dep(name = "rules_dotnet", version = "0.21.5-codeql.1")
 bazel_dep(name = "googletest", version = "1.18.0.bcr.1")
 bazel_dep(name = "rules_rust", version = "0.74.0")
 bazel_dep(name = "rules_swift", version = "4.0.0-rc5-codeql.3")
-bazel_dep(name = "swift-syntax", version = "603.0.2")
+bazel_dep(name = "swift-syntax", version = "604.0.0")
 bazel_dep(name = "zstd", version = "1.5.7.bcr.3")
 
 bazel_dep(name = "buildifier_prebuilt", version = "10.1.0", dev_dependency = True)