chore(main): release testcontainers 4.12.1

Author: github-actions[bot]

.github/.release-please-manifest.json

@@ -1,3 +1,3 @@
 {
-    ".": "4.12.0"
+    ".": "4.12.1"
 }

CHANGELOG.md

@@ -1,5 +1,12 @@
 # Changelog
 
+## [4.12.1](https://github.com/testcontainers/testcontainers-python/compare/testcontainers-v4.12.0...testcontainers-v4.12.1) (2025-08-07)
+
+
+### Bug Fixes
+
+* **core:** Make TC_POOLING_INTERVAL/sleep_time a float ([#839](https://github.com/testcontainers/testcontainers-python/issues/839)) ([a072f3f](https://github.com/testcontainers/testcontainers-python/commit/a072f3fad46b3b3e7c5bea6255f27b79826aaf5f))
+
 ## [4.12.0](https://github.com/testcontainers/testcontainers-python/compare/testcontainers-v4.11.0...testcontainers-v4.12.0) (2025-07-21)
 
 

pyproject.toml

@@ -1,6 +1,6 @@
 [tool.poetry]
 name = "testcontainers"
-version = "4.12.0"  # auto-incremented by release-please
+version = "4.12.1"  # auto-incremented by release-please
 description = "Python library for throwaway instances of anything that can run in a Docker container"
 authors = ["Sergey Pirogov <[email protected]>"]
 maintainers = [