community/chromium: upgrade to 117.0.5938.92

This change:

• Adds a patch (ipcz-missing-include.patch) for missing includes in //third_party/ipcz
• Adds a patch (material-color-stdround.patch) for an incorrect use of libc round() instead of C++ std::round() in //third_party/material_color_utilities
• Removes a hunk of libstdc++13.patch which was applied upstream
• Drops three of the extra patches which were needed against 116, because all three of these were fixed upstream in 117
• Disables v8-maglev on armv7, since it doesn't work without pointer compression (apparently)