Bump tempfile from 3.11.0 to 3.12.0

Bumps [tempfile](https://github.com/Stebalien/tempfile) from 3.11.0 to 3.12.0.
- [Changelog](https://github.com/Stebalien/tempfile/blob/master/CHANGELOG.md)
- [Commits](https://github.com/Stebalien/tempfile/commits)

---
updated-dependencies:
- dependency-name: tempfile
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

Signed-off-by: dependabot[bot] <support@github.com>

Author: dependabot[bot]

Cargo.lock

@@ -52,7 +52,7 @@ serde_json = "1.0.120"
 similar = "2.6.0"
 tabwriter = "1.4.0"
 thiserror = { version = "1", default-features = false }
-tempfile = "3.11.0"
+tempfile = "3.12.0"
 test-common = { path = "test-common" }
 thouart = { git = "https://github.com/oxidecomputer/thouart.git" }
 tokio = { version = "1.38.0", features = ["full"] }