Fix advisory link format in CVE-2009-5147.yml

Author: jasnow

rubies/ruby/CVE-2009-5147.yml

@@ -24,5 +24,5 @@ related:
     - http://seclists.org/oss-sec/2015/q3/222
     - https://bugzilla.redhat.com/show_bug.cgi?id=1248935
     - https://access.redhat.com/errata/RHSA-2018:0583
-    - https://github.com/advisories?query=GHSA-mmq8-m72q-qgm4
+    - https://github.com/advisories/GHSA-mmq8-m72q-qgm4
     - https://web.archive.org/web/20200227161903/https://www.securityfocus.com/bid/76060