Update module github.com/prometheus/client_golang to v1.12.2

See merge request !20

Also prevents update goroutines from piling up if they are delayed by
adding a semaphore in startUpdate().

Update golang.org/x/crypto commit hash to ae814b3

See merge request !10

Fix some issues reported by lintian

See merge request !16

Update module github.com/miekg/dns to v1.1.43

See merge request !17

Changes-By: lintian-brush
Fixes: lintian: package-uses-old-debhelper-compat-version
See-also: https://lintian.debian.org/tags/package-uses-old-debhelper-compat-version.html

Fix some issues reported by lintian

See merge request !15

Changes-By: lintian-brush
Fixes: lintian: uses-debhelper-compat-file
See-also: https://lintian.debian.org/tags/uses-debhelper-compat-file.html

+ Use dh_installsystemd rather than deprecated dh_systemd_enable.
+ Use dh_installsystemd rather than deprecated dh_systemd_start.

Changes-By: lintian-brush
Fixes: lintian: package-uses-old-debhelper-compat-version
See-also: https://lintian.debian.org/tags/package-uses-old-debhelper-compat-version.html

Changes-By: lintian-brush
Fixes: lintian: package-lacks-versioned-build-depends-on-debhelper
See-also: https://lintian.debian.org/tags/package-lacks-versioned-build-depends-on-debhelper.html

Fix some issues reported by lintian

See merge request !14

Changes-By: lintian-brush
Fixes: lintian: debian-changelog-has-wrong-day-of-week
See-also: https://lintian.debian.org/tags/debian-changelog-has-wrong-day-of-week.html

Changes-By: lintian-brush
Fixes: lintian: missing-built-using-field-for-golang-package
See-also: https://lintian.debian.org/tags/missing-built-using-field-for-golang-package.html

Changes-By: lintian-brush
Fixes: lintian: debian-rules-uses-unnecessary-dh-argument
See-also: https://lintian.debian.org/tags/debian-rules-uses-unnecessary-dh-argument.html

Changes-By: lintian-brush
Fixes: lintian: trailing-whitespace
See-also: https://lintian.debian.org/tags/trailing-whitespace.html

Update module github.com/prometheus/client_golang to v1.11.0

See merge request !11

Update golang.org/x/crypto commit hash to 5ea612d

See merge request !7

Update module miekg/dns to v1.1.40

See merge request !9

Update module miekg/dns to v1.1.39

See merge request !8

Update module miekg/dns to v1.1.38

See merge request !6

Update module miekg/dns to v1.1.37

See merge request !5

Update module miekg/dns to v1.1.35

See merge request !3

Update module yaml to v2.4.0

See merge request !4