Bump bundle/ultisnips from `b837416` to `8554371`
Bump bundle/ultisnips from `b837416` to `8554371`

Bumps [bundle/ultisnips](https://github.com/sirver/ultisnips) from `b837416` to `8554371`.
- [Release notes](https://github.com/sirver/ultisnips/releases)
- [Commits](https://github.com/sirver/ultisnips/compare/b837416c1ffe39b168baee35c0938739e96211c5...8554371b57c8989cf73f73f288c456fb3f2a3a3a)

Signed-off-by: dependabot[bot] <5bdcd3c0d4d24ae3e71b3b452a024c6324c7e4bb@github.com>
drAlberT/vim-configuration,faktiva/vim-config