Auto merge of #16654 - graemer957:feature/short_version_flag, r=lnicola

Add short flag -V for consistency with other rust tooling

Minor change to add the `-V` short flag to `rust-analyzer` to bring it in-line with other rust tooling such as:

> rustc -V
```bash
rustc 1.76.0 (07dca489a 2024-02-04)
```

> rustup -V
```bash
rustup 1.26.0 (5af9b9484 2023-04-05)
info: This is the version for the rustup toolchain manager, not the rustc compiler.
info: The currently active `rustc` version is `rustc 1.76.0 (07dca489a 2024-02-04)`
```

> cargo -V
```bash
cargo 1.76.0 (c84b36747 2024-01-18)
```

0 files changed, 0 insertions, 0 deletions