Release for v0.4.0 (#23)

* [tagpr] prepare for the next release

* [tagpr] update CHANGELOG.md

---------

Co-authored-by: creative-graphic-design[bot] <174257823+creative-graphic-design[bot]@users.noreply.github.com>

Author: creative-graphic-design[bot]

CHANGELOG.md

@@ -1,5 +1,9 @@
 # Changelog
 
+## [v0.4.0](https://github.com/creative-graphic-design/layout-prompter/compare/v0.3.0...v0.4.0) - 2025-07-07
+- Update for hashable processors by @shunk031 in https://github.com/creative-graphic-design/layout-prompter/pull/20
+- feat: update version to 0.4.0 in pyproject.toml and uv.lock by @shunk031 in https://github.com/creative-graphic-design/layout-prompter/pull/22
+
 ## [v0.3.0](https://github.com/creative-graphic-design/layout-prompter/compare/v0.2.0...v0.3.0) - 2025-07-03
 - feat: add worker/concurrency management for layout processing by @shunk031 in https://github.com/creative-graphic-design/layout-prompter/pull/17
 - feat: update version to 0.3.0 in pyproject.toml and uv.lock by @shunk031 in https://github.com/creative-graphic-design/layout-prompter/pull/19

pyproject.toml

@@ -9,7 +9,7 @@ authors = [
 requires-python = ">=3.11"
 dependencies = [
     "datasets[vision]>=2.0.0",
-    "langchain>=0.3.0",
+    "langchain>=0.3.1",
     "loguru>=0.7.0",
     "opencv-python>=4.11.0.86",
     "pydantic-numpy>=5.0.2",