Fixes #926

This reverts commit 10fb8754.

This reverts commit cee2250c.

Release 6.0.11

See merge request !1663

Honestly, I find it ugly and probably unintended,
but it's correctly signed and other vendors tend to accept it.

Example:
;; ->>HEADER<<- opcode: QUERY; status: NOERROR; id: 24204
;; Flags: qr aa rd; QUERY: 1; ANSWER: 0; AUTHORITY: 4; ADDITIONAL: 1

;; EDNS PSEUDOSECTION:
;; Version: 0; flags: do; UDP size: 4096 B; ext-rcode: NOERROR

;; QUESTION SECTION:
;; _domainkey.mail.cez.cz.              TXT

;; AUTHORITY SECTION:
cez.cz.                 3600    SOA     ns10.cez.cz. netmaster.cez.cz. 2025021801 14400 3600 604800 7200
cez.cz.                 3600    RRSIG   SOA 10 2 3600 20250302073317 20250223063317 45620 cez.cz. JnAonhCOi234lF2A40lYaHcuKtxACKz8X6UFILSgSaK00xyXDk6gWDWo3nmMjXxBwgfP98Gaj8nLMqRZ7ezAEUfWi+5P4YCQzax5Habu3nKB+XKocIPMCHHMhOMf410w4Taz4N2rKgi1p71QkuujISi3JZWzqG4bqzot2cGL12w=
1vk9lupeivbv7dhsb7udm5da1hkd089j.cez.cz. 7200   NSEC3   1 0 1 ACB298B834ADA5FD 1vk9lupeivbv7dhsb7udm5da1hkd089k A NS HINFO MX AAAA SRV RRSIG CAA
1vk9l...

#925

ci: pkg: debian 13

See merge request !1658

This concerns the AF_UNIX socket for sd_notify() protocol
between supervisord and the individual kresd processes.  
Before: "@knot-resolver-control-socket"
Now: "/the_rundir/supervisor-notify-socket"

Nits: also some refactoring (goto)

> TypeError: can only concatenate str (not "ReadableFile") to str

We don't need to use the knot_edns_options_t type from lua,
only there's a pointer in knot_pkt_t.
Now libknot increased this length in v3.4.4,
even without bumping SONAME, and it might happen again.
This way we avoid kres-gen-33.lua depending on this length.

Release 6.0.10

See merge request !1648

This makes it simpler for other parts of resolver to react to this
situation, e.g. custom modules pushing the information to analytics.