Automatic update of fbcode/onnx to 28ca699b69b5a31892619defca2391044a9a6052 (#23404)

Summary:
Pull Request resolved: https://github.com/pytorch/pytorch/pull/23404

Previous import was 707064980b9825b8705b9d1c9aad34d8b022d5dd

Included changes:
- **[28ca699b](https://github.com/onnx/onnx/commit/28ca699b)**: Member Company logo guidelines (#2196) <Prasanth Pulavarthi>
- **[47acb06a](https://github.com/onnx/onnx/commit/47acb06a)**: remove link to outdated issue for contributions wanted (#2186) <Prasanth Pulavarthi>
- **[168519f6](https://github.com/onnx/onnx/commit/168519f6)**: Create sigs.md (#2103) <Prasanth Pulavarthi>
- **[b9320746](https://github.com/onnx/onnx/commit/b9320746)**: mintor format update (#2180) <Prasanth Pulavarthi>
- **[65b8e0f9](https://github.com/onnx/onnx/commit/65b8e0f9)**: add more types support for Equal op (#2176) <Ke Zhang>
- **[dc5e62a9](https://github.com/onnx/onnx/commit/dc5e62a9)**: Update AddNewOP document. (#2172) <Emad Barsoum>
- **[bae8b530](https://github.com/onnx/onnx/commit/bae8b530)**: Add missing space (#2150) <Takeshi Watanabe>
- **[5952b7f5](https://github.com/onnx/onnx/commit/5952b7f5)**: python api example typo fix (#2155) <LeicongLi>
- **[904cb842](https://github.com/onnx/onnx/commit/904cb842)**: Fix errors in RoiAlign shape inference code (#2167) <G. Ramalingam>

Reviewed By: zrphercule

Differential Revision: D16502373

fbshipit-source-id: 81f1e8f0db6828fd551089ae2e0be65153739532

third_party/onnx

@@ -1 +1 @@
-Subproject commit 707064980b9825b8705b9d1c9aad34d8b022d5dd
+Subproject commit 28ca699b69b5a31892619defca2391044a9a6052