Merge pull request #4097 from DarthGandalf/znc

Use znc.in/releases URL again

library/znc

@@ -1,6 +1,6 @@
 Maintainers: Alexey Sokolov <[email protected]> (@DarthGandalf)
 GitRepo: https://github.com/znc/znc-docker.git
-GitCommit: dc49f6f1e02a145d3d2d7a58b923e2edfbe6bcd0
+GitCommit: 87d5d3c2f138540a97cd067fa869fab5eeeca3b8
 Architectures: amd64, arm32v6
 
 Tags: 1.6.6, 1.6, latest