dnsdist: Fix query rules bypass after tagging from a dynblock

dnsdist: Fix query rules bypass after tagging from a dynblock

In 2.0.0 we introduced the ability to set a tag when a dynamic
block matches, making it possible to combine dynamic blocks with
existing rules. Unfortunately the implementation turned out to
bypass query rules after setting a tag, so the mechanism could
only be used with the remaining rules chains (cache hit, cache-miss,
cache inserted, self-answered and regular response rules).
This commit fixes that to ensure that we can use tags with query
rules as well.

Signed-off-by: Remi Gacogne <remi.gacogne@powerdns.com>