Merge branch 'devel' into 'production'

Access to local experimental cppref

See merge request liu-puppet-modules/aes!57

files/squid/helpers/rules.d/cplusplus.rules

+// Experimental 2024-12-03
+^https?://cppreference-45864d\.gitlab-pages\.liu\.se/.* true
+^https?://upp\.gitlab-pages\.liu\.se/cppreference/.* true
+
 // C++ reference
 ^https?://www\.cplusplus\.com/forum.*       false
 ^https?://www\.cplusplus\.com/article.*     false