Log Message:
mail/rspamd: Update to 1.7.9.

- Fix missing config files (pkg/53577).

The most important features and fixes

- Ratelimits are reworked and now work as intended (and documented)
- Clickhouse module supports data retention policies
- Reworked C modules to avoid global contexts (simplifies leaks
  detection on reload)
- Reputation plugin now supports SPF records reputation
- WebUI code is now even more conformant to the modern JS standards
- Maps are now distributed remotely with local file safety fallback to
  allow faster maps update without waiting for a new release
- Antivirus module checks attachments only (as decoded content) in
  attachments_only mode to improve AV performance by hiding the mime
  content from them

Full list of the meaningful changes

- [CritFix] Fix caseless comparison of equal length strings
- [Feature] Add HTTP basic auth support to elastic and clickhouse
  plugins
- [Feature] Add SPF selector to reputation
- [Feature] Add support of the fallback backends for HTTP maps
- [Feature] Allow to print full mime structure when extracting mime
  data
- [Feature] Allow to split symbols in reputation plugin
- [Feature] Check attachments only on AV scanners in attachments_only
  mode
- [Feature] Disable all SSL checks if ssl_no_verify flag is set
- [Feature] Implement parsing of scoped IPv6 addresses
- [Feature] Improve rspamc counters output
- [Fix] Add sanity checks when expanding SPF macros
- [Fix] Allow to parse SA rules with no spaces around =~ (dirty hack)
- [Fix] Avoid one extra byte writing
- [Fix] Deal with direct hash table
- [Fix] Detect empty text part as text, not HTML
- [Fix] Do not reduce map watch timeout for mixed http/file maps
- [Fix] Fix HTML part detection heuristic
- [Fix] Fix double free in redirectors cleanup
- [Fix] Fix legacy history handling in the controller
- [Fix] Fix messages insertion
- [Fix] Fix sending string method
- [Fix] Fix statconver command line arguments
- [Fix] Fixed argument checking for being null
- [Fix] Fixed issues reported by luacheck
- [Fix] Freeze updates queue when do actual storage update
- [Fix] HTTP map hash is per-backend and not per-map
- [Fix] Plug memory leak in fuzzy updates
- [Fix] Prefer 'MTA-Name' when producing authentication results
- [Fix] Replace bad unicode sequences instead of stopping on them
- [Fix] Set classifier version on learning
- [Project] Reworked ratelimits
- [Project] Apply topological sorting for symbols in Rspamd
- [Project] Remove global contexts from C modules
- [Project] Move performance critical hash tables to khash
- [WebUI] Avoid unused indexes
- [WebUI] Do not execute on_success callback
- [WebUI] Fix history reset for "All SERVERS" (#2346)
- [WebUI] Fix query URL for selected server
- [WebUI] Fix symbols display in legacy history,
- [WebUI] Hide symbols order selector for legacy history
- [WebUI] Refactor query functions into one
- [WebUI] Remove previously-attached event handlers
- [WebUI] Save symbols to the selected server
- [WebUI] Unify arguments of query functions
- [WebUI] Use common query functions to get graph data
- [WebUI] Use common query functions to save symbols