chore(deps): bump the bollard group with 2 updates

Updates the requirements on [bollard](https://github.com/fussybeaver/bollard) and bollard-stubs to permit the latest version.

Updates `bollard` to 0.18.1
- [Release notes](https://github.com/fussybeaver/bollard/releases)
- [Changelog](https://github.com/fussybeaver/bollard/blob/master/RELEASE.md)
- [Commits](fussybeaver/bollard@v0.18.1...v0.18.1)

Updates `bollard-stubs` to 1.48.3-rc.28.0.4

---
updated-dependencies:
- dependency-name: bollard
  dependency-version: 0.18.1
  dependency-type: direct:production
  dependency-group: bollard
- dependency-name: bollard-stubs
  dependency-version: 1.48.3-rc.28.0.4
  dependency-type: direct:production
  dependency-group: bollard
...

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

Author: dependabot[bot]

testcontainers/Cargo.toml

@@ -17,8 +17,8 @@ rustdoc-args = ["--cfg", "docsrs"]
 
 [dependencies]
 async-trait = { version = "0.1" }
-bollard = { version = "0.18.1"}
-bollard-stubs = "=1.47.1-rc.27.3.1"
+bollard = { version = "0.19.1"}
+bollard-stubs = "=1.48.3-rc.28.0.4"
 bytes = "1.6.0"
 conquer-once = { version = "0.4", optional = true }
 docker_credential = "1.3.1"