chore(deps): Bump bstr from 1.5.0 to 1.6.0

Bumps [bstr](https://github.com/BurntSushi/bstr) from 1.5.0 to 1.6.0.
- [Commits](BurntSushi/bstr@1.5.0...1.6.0)

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

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

Author: dependabot[bot]

Cargo.lock

@@ -19,7 +19,7 @@ vector-config-common = { path = "../vector-config-common", default-features = fa
 vector-config-macros = { path = "../vector-config-macros", default-features = false }
 
 [dependencies.bstr]
-version = "1.5"
+version = "1.6"
 default-features = false
 features = []