Update mongo

Changes:

- https://github.com/docker-library/mongo/commit/86974ba: Merge pull request https://github.com/docker-library/mongo/pull/341 from infosiftr/configsvr
- https://github.com/docker-library/mongo/commit/e0b3c10: Update _dbPath function to account for running as a config server

library/mongo

@@ -9,7 +9,7 @@ SharedTags: 3.4.20, 3.4
 # see http://repo.mongodb.org/apt/debian/dists/jessie/mongodb-org/3.4/main/
 # (i386, ppc64el, s390x are empty)
 Architectures: amd64
-GitCommit: 135be00ece480b72826d871f5725214c35a1a9ab
+GitCommit: e0b3c10c48a9e4839106f7c895f9a95f4be9196d
 Directory: 3.4
 
 Tags: 3.4.20-windowsservercore-ltsc2016, 3.4-windowsservercore-ltsc2016
@@ -31,7 +31,7 @@ SharedTags: 3.6.11, 3.6, 3
 # see http://repo.mongodb.org/apt/debian/dists/stretch/mongodb-org/3.6/main/
 # (i386, ppc64el, s390x are empty)
 Architectures: amd64
-GitCommit: 7276b14c1e9b5f83b37f5f452e6a9f293aea2d8b
+GitCommit: e0b3c10c48a9e4839106f7c895f9a95f4be9196d
 Directory: 3.6
 
 Tags: 3.6.11-windowsservercore-ltsc2016, 3.6-windowsservercore-ltsc2016, 3-windowsservercore-ltsc2016
@@ -53,7 +53,7 @@ SharedTags: 4.0.7, 4.0, 4, latest
 # see http://repo.mongodb.org/apt/ubuntu/dists/xenial/mongodb-org/4.0/multiverse/
 # (i386, ppc64el, s390x are empty)
 Architectures: amd64, arm64v8
-GitCommit: 6f010d88a47b9a27d06babef251baca428b03b7f
+GitCommit: e0b3c10c48a9e4839106f7c895f9a95f4be9196d
 Directory: 4.0
 
 Tags: 4.0.7-windowsservercore-ltsc2016, 4.0-windowsservercore-ltsc2016, 4-windowsservercore-ltsc2016, windowsservercore-ltsc2016
@@ -82,7 +82,7 @@ SharedTags: 4.1.9, 4.1, unstable
 # see http://repo.mongodb.org/apt/ubuntu/dists/xenial/mongodb-org/4.1/multiverse/
 # (i386, ppc64el, s390x are empty)
 Architectures: amd64, arm64v8
-GitCommit: 419e28b751ca1edc470832fa890f9df46545679d
+GitCommit: e0b3c10c48a9e4839106f7c895f9a95f4be9196d
 Directory: 4.1
 
 Tags: 4.1.9-windowsservercore-ltsc2016, 4.1-windowsservercore-ltsc2016, unstable-windowsservercore-ltsc2016