www/angie-module-cache-purge: Update 2.5.4 => 2.5.5

Changelog:

• Fix segfault when using same-location syntax with variable cache zones.

https://github.com/nginx-modules/ngx_cache_purge/releases/tag/2.5.5

Commit log:
https://github.com/nginx-modules/ngx_cache_purge/compare/2.5.4...2.5.5

PR: 292236