NEWS: prepare for 2.8.1

Signed-off-by: Jakub Jelen <jjelen@redhat.com>
12 jobs for release-2.8.1 in 63 minutes and 20 seconds (queued for 1 second)
Name Stage Failure
failed
Fedora asan Test The script exceeded the maximum execution time set for the job
PASS: tests/simpletlv 2 /simpletlv/length/nested
PASS: tests/simpletlv 3 /simpletlv/length/skipped
PASS: tests/simpletlv 4 /simpletlv/encode/simple
PASS: tests/simpletlv 5 /simpletlv/encode/nested
PASS: tests/simpletlv 6 /simpletlv/encode/skipped
PASS: tests/simpletlv 7 /simpletlv/parse/simple
PASS: tests/simpletlv 8 /simpletlv/parse/last_bad
PASS: tests/simpletlv 9 /simpletlv/clone/simple
ERROR: Job failed: execution took longer than 1h0m0s seconds