Add Darwin runner for subset of targets.

There is further discussion in
    - https://github.com/orgs/community/discussions/118963
    - #268

PiperOrigin-RevId: 610234559

.github/workflows/ci.yml

@@ -10,10 +10,18 @@ permissions:
   contents: read
 
 jobs:
-  build:
+  ubuntu_test:
     runs-on: ubuntu-latest
-
     steps:
-    - uses: actions/checkout@24cb9080177205b6e8c946b17badbe402adc938f # v3.4.0
+    - uses: actions/checkout@v4
     - name: test
       run: bazel test --cxxopt='-std=c++17' --repo_env=CC=clang --test_output=errors ...
+
+  # NOTE: Mac is only running a small subset of targets due to an unresolved
+  # issue in Bazel. When this is fixed in the future I will expand testing.
+  macos_test:
+    runs-on: macos-latest
+    steps:
+    - uses: actions/checkout@v4
+    - name: test
+      run: bazel test --cxxopt='-std=c++17' --repo_env=CC=clang --test_output=errors metaprogramming/...

MODULE.bazel

@@ -8,6 +8,7 @@ bazel_dep(name = "bazel_skylib", version = "1.4.2")
 bazel_dep(name = "rules_java", version = "7.1.0")
 bazel_dep(name = "rules_jvm_external", version = "5.2")
 bazel_dep(name = "rules_license", version = "0.0.7")
+bazel_dep(name = "freetype", version = "2.9")
 bazel_dep(name = "protobuf", version = "21.7", repo_name = "com_google_protobuf")
 
 bazel_dep(
@@ -19,8 +20,7 @@ bazel_dep(
 
 # Maven artifacts required by Stardoc; keep consistent with deps.bzl
 MAVEN_ARTIFACTS = [
-    "com.google.guava:guava:31.1-jre",
-    "com.google.truth:truth:1.1.3",
+    "com.google.truth:truth:1.1.2",
     "junit:junit:4.13.2",
     "org.mockito:mockito-core:4.3.1",
 ]