rec: generate metrics docs when publishing

[omoerbeek]

Short description

Checklist

I have:

• read the CONTRIBUTING.md document
• compiled this code
• tested this code
• included documentation (including possible behaviour changes)
• documented the code
• added or modified regression test(s)
• added or modified unit test(s)
• checked that this code was merged to master

[coveralls]

Pull Request Test Coverage Report for Build 11329357290

Details

• 0 of 0 changed or added relevant lines in 0 files are covered.
• 5286 unchanged lines in 77 files lost coverage.
• Overall coverage increased (+0.007%) to 64.653%

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Files with Coverage Reduction	New Missed Lines	%
pdns/webserver.hh	1	69.16%
pdns/recursordist/ext/protozero/include/protozero/config.hpp	1	0.0%
pdns/recursordist/sortlist.hh	1	75.0%
pdns/iputils.hh	1	78.2%
pdns/dnstap.cc	2	70.97%
ext/probds/murmur3.cc	2	94.12%
pdns/dnsname.hh	2	91.84%
pdns/recursordist/secpoll-recursor.cc	2	51.02%
pdns/qtype.hh	3	73.91%
pdns/packethandler.cc	3	72.55%

Totals
Change from base Build 11325006413:	0.007%
Covered Lines:	124763
Relevant Lines:	162237

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💛 - Coveralls