Add healthchecks/healthchecks to nvchecker (#701)

* change - add healthchecks for version update check

* change - add use_max_tag for getting latest tag version

* change - update prefix suggest

Co-authored-by: Amin Vakil <info@aminvakil.com>

---------

Co-authored-by: Amin Vakil <info@aminvakil.com>

Author: shaerpour

others.toml

@@ -51,3 +51,9 @@ prefix = ""
 [iptables-persistent-deb10]
 source = "cmd"
 cmd = "curl -s http://deb.debian.org/debian/pool/main/i/iptables-persistent/ | grep 'deb10' | tail -1 | sed 's/.*netfilter-persistent_//' | sed 's/_all.*//'"
+
+[healthchecks]
+source = "github"
+github = "healthchecks/healthchecks"
+prefix = "v"
+use_max_tag = true