Add SwiftSyntax dev dependency when using Bzlmod (#1345)

Signed-off-by: Brentley Jones <github@brentleyjones.com>

Author: brentleyjones

MODULE.bazel

@@ -44,3 +44,13 @@ register_toolchains("@build_bazel_rules_swift_local_config//:all")
 bazel_dep(name = "bazel_skylib_gazelle_plugin", version = "1.5.0", dev_dependency = True)
 bazel_dep(name = "gazelle", version = "0.33.0", dev_dependency = True, repo_name = "bazel_gazelle")
 bazel_dep(name = "stardoc", version = "0.6.2", dev_dependency = True, repo_name = "io_bazel_stardoc")
+
+http_archive = use_repo_rule("@bazel_tools//tools/build_defs/repo:http.bzl", "http_archive")
+
+http_archive(
+    name = "SwiftSyntax",
+    dev_dependency = True,
+    sha256 = "527a5c6d19987acbb5019efa067b0fbd127e06187a0689c3f1098fd22c1a7d43",
+    strip_prefix = "swift-syntax-01fc3e3ed4d26121c06790abf8fe5ddaa22a4cc5",
+    url = "https://github.com/apple/swift-syntax/archive/01fc3e3ed4d26121c06790abf8fe5ddaa22a4cc5.tar.gz",
+)