chore(deps): update gameservermanagers/gameserver:gmod docker digest to ab859f3 (#309)

Co-authored-by: renovate[bot] <29139614+renovate[bot]@users.noreply.github.com>

Author: renovate[bot]

images/gmod-base/Dockerfile

@@ -1,6 +1,6 @@
 FROM hairyhenderson/gomplate:v4.3.0@sha256:5e24d79d00b99d22ac248473ac09dc3a06f41024ca78d6905650057f296206cb AS gomplate
 
-FROM gameservermanagers/gameserver:gmod@sha256:9b321938ccb7d792408a388a8d190e9aabe1370bff52714d14593dbb038eb570
+FROM gameservermanagers/gameserver:gmod@sha256:ab859f36f97cc31b7dccebbee3ce2b22531fca433f4b123e40ad75cd376323db
 ARG IMAGE_DIR
 
 # Override entrypoint-user to support hooks