www/angie-module-cache-purge: Update 2.5.3 -> 2.5.4

Changelog:

• Fix memory leak when using partial (wildcard) keys.

https://github.com/nginx-modules/ngx_cache_purge/releases/tag/2.5.4

PR: 290251
MFH: 2025Q4
(cherry picked from commit 8c17ca4b8edf95439f86dfdb8375553204c2c720)