Auto merge of #8964 - tamaroning:read_zero_byte_vec, r=dswij

Warn about read into zero-length `Vec`

Closes #8886

- \[x] Followed [lint naming conventions][lint_naming]
- \[x] Added passing UI tests (including committed `.stderr` file)
- \[x] `cargo test` passes locally
- \[x] Executed `cargo dev update_lints`
- \[x] Added lint documentation
- \[x] Run `cargo dev fmt`

changelog: none

diff --cc clippy_lints/src/lib.rs
Simple merge