Re-enable disabled CI (#3514)

Author: illicitonion

.bazelci/presubmit.yml

@@ -809,18 +809,17 @@ tasks:
       - "@rules_rust//tools/rust_analyzer:gen_rust_project"
     test_targets:
       - "//..."
-  # TODO: https://github.com/bazelbuild/rules_rust/issues/2878
-  # windows_bzlmod_bcr:
-  #   name: bzlmod BCR presubmit
-  #   platform: windows
-  #   working_directory: examples/hello_world
-  #   test_flags: *bzlmod_flags
-  #   run_targets:
-  #     - "//third-party-in-workspace:vendor"
-  #   build_targets:
-  #     - "@rules_rust//tools/rust_analyzer:gen_rust_project"
-  #   test_targets:
-  #     - "//..."
+  windows_bzlmod_bcr:
+    name: bzlmod BCR presubmit
+    platform: windows
+    working_directory: examples/hello_world
+    test_flags: *bzlmod_flags
+    run_targets:
+      - "//third-party-in-workspace:vendor"
+    build_targets:
+      - "@rules_rust//tools/rust_analyzer:gen_rust_project"
+    test_targets:
+      - "//..."
   example_sys_linux:
     platform: ubuntu2204
     working_directory: examples/sys