Missing dependencies in rpm package

https://github.com/Microsoft/vscode/issues/13089 but for .rpm

Notes:

- Chromium deps: https://cs.chromium.org/chromium/src/chrome/installer/linux/rpm/expected_deps_i386?dr=C&q=libxss.so.1&sq=package:chromium
- `ldd /usr/share/code-insiders/code-insiders` can fetch a list of deps