Merge pull request #15668 from omoerbeek/opentelemetry-trace

rec: generate trace data in OpenTelemetry format

diff --cc .github/actions/spell-check/expect.txt
Simple merge

diff --cc pdns/recursordist/rec-main.cc
Simple merge

diff --cc pdns/recursordist/rec_channel_rec.cc
Simple merge

diff --cc pdns/recursordist/syncres.cc
Simple merge

diff --cc pdns/recursordist/syncres.hh
Simple merge