dns/dnsmasq-devel: update to rc1 release candidate

Changes:

• a42ee39 2021-08-16 | Man page BNF error fix. [Geert Stappers]
• e58f8bb 2021-08-25 | Merge message changes into I18N files. [Simon Kelley]
• 58cf958 2021-08-20 | Fix empty domain in server option parsing when more than one domain is given [Dominik DL6ER]
• 06d01f7 2021-07-22 | Make comment style consistent. [Etan Kissling]
• 1a33eec 2021-07-22 | Adjust logging levels for connmark patterns. [Etan Kissling]
• 82de7a1 2021-07-22 | Re-order UBus teardown logic. [Etan Kissling]
• 8e9bde5 2021-07-22 | Eliminate redundant UBus notify variable. [Etan Kissling]
• 1bb70e0 2021-07-22 | Handle UBus serialization errors. [Etan Kissling]
• 9afcb7a 2021-08-12 | Revert "There was a notify variable to keep track whether a subscriber is" [Simon Kelley]
• 545c495 2021-08-12 | Revert "Re-order UBus teardown logic." [Simon Kelley]
• 2f2d59b 2021-08-12 | Define order of reading files when --addn-hosts given a directory. [Simon Kelley]

CHANGELOG addition:

+ When --dhcp-hostsfile --dhcp-optsfile and --addn-hosts are
+ given a directory as argument, define the order in which
+ files within that directory are read (alphabetical order
+ of filename). Thanks to Ed Wildgoose for the initial patch
+ and motivation for this.