examples: enable cares on windows (#1520)

c-ares builds fine on Windows with the existing cmake rule, it just
needed CARES_STATICLIB defined when consuming the static library so the
headers use the right calling convention.

Author: novas0x2a

examples/third_party/cares/BUILD.bazel

@@ -6,13 +6,21 @@ cc_test(
     name = "test",
     size = "small",
     srcs = ["c-ares-test.cpp"],
+    local_defines = select({
+        "@platforms//os:windows": ["CARES_STATICLIB"],
+        "//conditions:default": [],
+    }),
     visibility = ["//:__pkg__"],
     deps = ["@cares"],
 )
 
 cc_library(
     name = "lib",
     srcs = ["c-ares-test.cpp"],
+    local_defines = select({
+        "@platforms//os:windows": ["CARES_STATICLIB"],
+        "//conditions:default": [],
+    }),
     deps = ["@cares"],
 )
 

examples/third_party/cares/BUILD.cares.bazel

@@ -23,8 +23,4 @@ cmake(
         "@platforms//os:windows": ["cares.lib"],
         "//conditions:default": ["libcares.a"],
     }),
-    target_compatible_with = select({
-        "@platforms//os:windows": ["@rules_foreign_cc_examples_third_party//:broken"],
-        "//conditions:default": [],
-    }),
 )