Update mongo

Changes:

- https://github.com/docker-library/mongo/commit/d1670df: Fix Windows FROMs
- https://github.com/docker-library/mongo/commit/c1d4e72: Add Windows 1809 images to AppVeyor configuration

library/mongo

@@ -14,7 +14,7 @@ Directory: 3.4
 Tags: 3.4.24-windowsservercore-ltsc2016, 3.4-windowsservercore-ltsc2016
 SharedTags: 3.4.24-windowsservercore, 3.4-windowsservercore, 3.4.24, 3.4
 Architectures: windows-amd64
-GitCommit: 12d4bfdefb8364ac0c0f98a9b8fb33fbd358b3cf
+GitCommit: d1670df1e02f6d7631fa247a5df6fd70873794b0
 Directory: 3.4/windows/windowsservercore-ltsc2016
 Constraints: windowsservercore-ltsc2016
 
@@ -28,7 +28,7 @@ Directory: 3.6
 Tags: 3.6.17-windowsservercore-ltsc2016, 3.6-windowsservercore-ltsc2016, 3-windowsservercore-ltsc2016
 SharedTags: 3.6.17-windowsservercore, 3.6-windowsservercore, 3-windowsservercore, 3.6.17, 3.6, 3
 Architectures: windows-amd64
-GitCommit: 6d62baeef7bd92bd0b676859c16ff3bba26d89bc
+GitCommit: d1670df1e02f6d7631fa247a5df6fd70873794b0
 Directory: 3.6/windows/windowsservercore-ltsc2016
 Constraints: windowsservercore-ltsc2016
 
@@ -42,14 +42,14 @@ Directory: 4.0
 Tags: 4.0.15-windowsservercore-ltsc2016, 4.0-windowsservercore-ltsc2016
 SharedTags: 4.0.15-windowsservercore, 4.0-windowsservercore, 4.0.15, 4.0
 Architectures: windows-amd64
-GitCommit: bb33fea97d21aa88c76e6103dda2736a430eb053
+GitCommit: d1670df1e02f6d7631fa247a5df6fd70873794b0
 Directory: 4.0/windows/windowsservercore-ltsc2016
 Constraints: windowsservercore-ltsc2016
 
 Tags: 4.0.15-windowsservercore-1809, 4.0-windowsservercore-1809
 SharedTags: 4.0.15-windowsservercore, 4.0-windowsservercore, 4.0.15, 4.0
 Architectures: windows-amd64
-GitCommit: bb33fea97d21aa88c76e6103dda2736a430eb053
+GitCommit: d1670df1e02f6d7631fa247a5df6fd70873794b0
 Directory: 4.0/windows/windowsservercore-1809
 Constraints: windowsservercore-1809
 
@@ -63,13 +63,13 @@ Directory: 4.2
 Tags: 4.2.3-windowsservercore-ltsc2016, 4.2-windowsservercore-ltsc2016, 4-windowsservercore-ltsc2016, windowsservercore-ltsc2016
 SharedTags: 4.2.3-windowsservercore, 4.2-windowsservercore, 4-windowsservercore, windowsservercore, 4.2.3, 4.2, 4, latest
 Architectures: windows-amd64
-GitCommit: 07685ae35a68ee006f2d328b77933789bbe3048a
+GitCommit: d1670df1e02f6d7631fa247a5df6fd70873794b0
 Directory: 4.2/windows/windowsservercore-ltsc2016
 Constraints: windowsservercore-ltsc2016
 
 Tags: 4.2.3-windowsservercore-1809, 4.2-windowsservercore-1809, 4-windowsservercore-1809, windowsservercore-1809
 SharedTags: 4.2.3-windowsservercore, 4.2-windowsservercore, 4-windowsservercore, windowsservercore, 4.2.3, 4.2, 4, latest
 Architectures: windows-amd64
-GitCommit: 07685ae35a68ee006f2d328b77933789bbe3048a
+GitCommit: d1670df1e02f6d7631fa247a5df6fd70873794b0
 Directory: 4.2/windows/windowsservercore-1809
 Constraints: windowsservercore-1809