Added mistserver to the library

Author: junojense

library/mistserver

@@ -0,0 +1,15 @@
+Maintainers: Jaron Viëtor <jaron.vietor@ddvtech.com> (@Thulinma),
+             Marco van Dijk <marco.van.dijk@ddvtech.com> (@stronk-dev),
+             Carina van der Meer <carina.van.der.meer@ddvtech.com> (@thoronwen),
+             Balder Viëtor <balder.vietor@ddvtech.com> (@Rokamun),
+             Ramkoemar Bhoera <ramkoemar.bhoera@ddvtech.com> (@ramkoemar),
+             Juno Jense <unit-stamp-sled@duck.com> (@junojense)
+GitRepo: https://github.com/DDVTECH/mistserver-docker-builder.git
+GitFetch: refs/heads/main
+GitCommit: 12407fd046064ede3cfeb2d4b42bd01b30871e00
+Builder: buildkit
+
+Tags: latest, 3.9.2
+Architectures: amd64, arm64v8
+Directory: 3.9.2
+File: Dockerfile.mistserver