Bump backtrace from 0.3.71 to 0.3.73

Bumps [backtrace](https://github.com/rust-lang/backtrace-rs) from 0.3.71 to 0.3.73.
- [Release notes](https://github.com/rust-lang/backtrace-rs/releases)
- [Commits](rust-lang/backtrace-rs@0.3.71...0.3.73)

---
updated-dependencies:
- dependency-name: backtrace
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

Signed-off-by: dependabot[bot] <[email protected]>