chore: release v0.21.1 (#717)

## 🤖 New release
* `testcontainers`: 0.21.0 -> 0.21.1

<details><summary><i><b>Changelog</b></i></summary><p>

<blockquote>

## [0.21.1] - 2024-08-05

### Details
#### Features
- Allow configuring resource ulimits
([#714](#714))
</blockquote>


</p></details>

---
This PR was generated with
[release-plz](https://github.com/MarcoIeni/release-plz/).

Co-authored-by: github-actions[bot] <41898282+github-actions[bot]@users.noreply.github.com>

Author: github-actions[bot]

CHANGELOG.md

@@ -2,6 +2,10 @@
 
 All notable changes to this project will be documented in this file.
 
+## [0.21.1] - 2024-08-05
+### Details
+#### Features
+- Allow configuring resource ulimits ([#714](https://github.com/testcontainers/testcontainers-rs/pull/714))
 ## [0.21.0] - 2024-07-30
 ### Details
 #### Bug Fixes

testcontainers/Cargo.toml

@@ -1,6 +1,6 @@
 [package]
 name = "testcontainers"
-version = "0.21.0"
+version = "0.21.1"
 categories = ["development-tools::testing"]
 readme = "README.md"
 authors.workspace = true