Release 3.10.1

* [Fix] Avoid null-bytes in Log-Tag header value.
* [Fix] Do not abort when OpenSSL is broken, report that to a user
* [Fix] Load "default" provider as well as "legacy"
* [Fix] Restore propagation of spam/ham learns
* [Fix] Use correct type for keylen in lua_ucl_newindex
* [Fix] Use unsigned char for ragel machines
* [Rework] Update hiredis to 1.2.0
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