docs: add PR number to localize changelog entry

Author: swiffer

CHANGELOG.md

@@ -16,7 +16,7 @@
 - ci: purge orphaned GHCR attestation referrers (#5622 - @swiffer)
 - test: stop the app in test_helper instead of relying on --no-start (#5615 - @swiffer)
 - build(deps): update flake.lock (#5613)
-- build(deps): replace `ex_cldr` / `ex_cldr_plugs` with `localize` and `localize_web` (ex_cldr support ends 2027-12-31). Drops compile-time locale download and the Nix `cldr` pin.
+- build(deps): replace `ex_cldr` / `ex_cldr_plugs` with `localize` and `localize_web` (ex_cldr support ends 2027-12-31). Drops compile-time locale download and the Nix `cldr` pin. (#5630)
 
 #### Dashboards