ci(dependabot): hold miekg/dns at the last Go 1.26 release

Merged
GO
13d ago
+6-0

codeberg.org/miekg/dns releases after v0.6.97 require Go 1.27, and
taking them would raise dnsdiam to Go 1.27 while the repository still
supports and tests Go 1.26. Ignore those versions until Go 1.26 leaves
support.

Replaces #121, which would have raised dnsdiam to Go 1.27. make check passes locally (all 9 checks).


Summary by cubic

Holds codeberg.org/miekg/dns at v0.6.97 in Dependabot updates. Releases after v0.6.97 require Go 1.27, so accepting them would raise dnsdiam to Go 1.27 even though the repository still supports and tests Go 1.26. Dependabot now ignores versions >= 0.6.98 until Go 1.26 leaves support.