chore: Bump version to 7.3.0 (#179)

- Add changelog entries for expires_at/2 API, before_clean callback, and bug fixes
- Update version in mix.exs from 7.2.0 to 7.3.0

Author: epinault

CHANGELOG.md

@@ -1,5 +1,12 @@
 # Changelog
 
+## 7.3.0 - 2026-03-31
+
+- Add `expires_at/2` API for fix_window algorithm (#178)
+- Add `before_clean` callback on bucket expiry (#177)
+- Fix timestamp unit mismatch in `TokenBucket` and `LeakyBucket` `clean/1` (#176)
+- Fix race condition between `insert_new` and `lookup` in ETS `hit/5` (#175)
+
 ## 7.2.0 - 2026-02-03
 
 - Fix race condition in `TokenBucket` and `LeakyBucket` atomics backends by using compare-and-swap (CAS) with packed 64-bit values (#169)

mix.exs

@@ -2,7 +2,7 @@ defmodule Hammer.MixProject do
   use Mix.Project
 
   @source_url "https://github.com/ExHammer/hammer"
-  @version "7.2.0"
+  @version "7.3.0"
 
   def project do
     [