Add Mac_x64 darwin_lint_podspecs to LUCI

.ci.yaml

@@ -25,8 +25,32 @@ platform_properties:
         ]
       device_type: none
       os: Windows
+  mac_x64:
+    properties:
+      dependencies: >-
+        [
+          {"dependency": "xcode", "version": "14a5294e"},
+          {"dependency": "gems", "version": "v3.3.14"}
+        ]
+      os: Mac-12
+      device_type: none
+      cpu: x86
+      xcode: 14a5294e # xcode 14.0 beta 5
+
 
 targets:
+  # TODO(stuartmorgan): Move this to ARM once google_maps_flutter has ARM
+  # support. `pod lint` makes a synthetic target that doesn't respect the
+  # pod's arch exclusions, so fails to build.
+  - name: Mac_x64 lint_podspecs
+    recipe: plugins/plugins
+    bringup: true # New target: https://github.com/flutter/plugins/pull/6637
+    timeout: 30
+    properties:
+      add_recipes_cq: "true"
+      version_file: flutter_master.version
+      target_file: mac_lint_podspecs.yaml
+
   - name: Windows win32-platform_tests master
     recipe: plugins/plugins
     timeout: 30

.ci/targets/mac_lint_podspecs.yaml

@@ -0,0 +1,6 @@
+tasks:
+  - name: prepare tool
+    script: .ci/scripts/prepare_tool.sh
+  - name: lint iOS and macOS podspecs
+    script: script/tool_runner.sh
+    args: ["podspecs"]