test(ntfy): cover echo-tag filter; tag standalone send path

Adds tests for the echo-loop fix (outgoing X-Tags header, inbound skip
on tagged events, genuine tags pass through) and extends the tag to the
out-of-process _standalone_send() path so cron / send_message deliveries
to a self-subscribed topic are also skipped. Maps both contributors in
release.py AUTHOR_MAP.

Co-authored-by: liuhao1024 <sunsky.lau@gmail.com>

scripts/release.py

@@ -129,6 +129,8 @@ AUTHOR_MAP = {
     "32711803+waefrebeorn@users.noreply.github.com": "waefrebeorn",
     "32869278+dusterbloom@users.noreply.github.com": "dusterbloom",
     "liuhao1024@users.noreply.github.com": "liuhao1024",
+    "annguyenNous@users.noreply.github.com": "annguyenNous",
+    "285874597+annguyenNous@users.noreply.github.com": "annguyenNous",
     "kylekahraman@users.noreply.github.com": "kylekahraman",
     "130975919+kylekahraman@users.noreply.github.com": "kylekahraman",
     "seppe@fushia.be": "seppegadeyne",