Log Message:
mail/rspamd: Update to 1.7.1.

- [CritFix] Fix lowercase comparison
- [CritFix] Timezone defines seconds WEST UTC not East
- [Feature] Add filename to log format
- [Feature] Add lua rules squeezing
- [Feature] Add related symbols analysis to rspamd_stats
- [Feature] Remove upstream `X-Spam: Yes` header by default
- [Feature] rspamd_stats: Output progress info on STDERR
- [Feature] Whitelist for emails module
- [Fix] Do not allow dependencies on self
- [Fix] Do not cache metric result
- [Fix] Do not trust all issuers as a client certificate
- [Fix] Fix dependencies in lua squeeze
- [Fix] Fix enabling/disabling squeezed rules
- [Fix] Fix enabling/disabling symbols
- [Fix] Fix external dependencies
- [Fix] Fix processing of a single compressed file
- [Fix] Fix some typos
- [Fix] Fix various modules in case of empty message
- [Fix] Handle callbacks that returns table of options
- [Fix] Improve cached action interaction
- [Fix] Make dynamic conf more NaN aware
- [Fix] Never hide actions from WebUI `configuration` tab
- [Project] Implementation of Lua rules squeezing