Upgrades elixir to v1.6.3

Refer to c0b/docker-elixir#59

library/elixir

@@ -1,21 +1,21 @@
-# this file is generated via https://github.com/c0b/docker-elixir/blob/299891c2b3431205113db87c7cb970a529a4e3dc/generate-stackbrew-library.sh
+# this file is generated via https://github.com/c0b/docker-elixir/blob/b4a2b8ea703865bd04490f43244198d0c95fa607/generate-stackbrew-library.sh
 
 Maintainers: Mr C0B <[email protected]> (@c0b)
 GitRepo: https://github.com/c0b/docker-elixir.git
 
-Tags: 1.6.2, 1.6, latest
+Tags: 1.6.3, 1.6, latest
 Architectures: amd64, arm32v7, arm64v8, i386, s390x, ppc64le
-GitCommit: 299891c2b3431205113db87c7cb970a529a4e3dc
+GitCommit: bf09944c0d0a573f3dde01d864e25db80b3236a2
 Directory: 1.6
 
-Tags: 1.6.2-slim, 1.6-slim, slim
+Tags: 1.6.3-slim, 1.6-slim, slim
 Architectures: amd64, arm32v7, arm64v8, i386, s390x, ppc64le
-GitCommit: 299891c2b3431205113db87c7cb970a529a4e3dc
+GitCommit: bf09944c0d0a573f3dde01d864e25db80b3236a2
 Directory: 1.6/slim
 
-Tags: 1.6.2-alpine, 1.6-alpine, alpine
+Tags: 1.6.3-alpine, 1.6-alpine, alpine
 Architectures: amd64, arm64v8, i386, s390x, ppc64le
-GitCommit: 299891c2b3431205113db87c7cb970a529a4e3dc
+GitCommit: bf09944c0d0a573f3dde01d864e25db80b3236a2
 Directory: 1.6/alpine
 
 Tags: 1.5.3, 1.5
@@ -52,13 +52,3 @@ Tags: 1.3.4-slim, 1.3-slim
 Architectures: amd64, arm32v7, arm64v8, i386, s390x
 GitCommit: d8d656d7c0dc9dd2956a22276c93cb97568ea6d4
 Directory: 1.3/slim
-
-Tags: 1.2.6, 1.2
-Architectures: amd64, arm32v7, arm64v8, i386, s390x
-GitCommit: 77b9a3da43ce035327ae29083e567191d60a6ac8
-Directory: 1.2
-
-Tags: 1.2.6-slim, 1.2-slim
-Architectures: amd64, arm32v7, arm64v8, i386, s390x
-GitCommit: 77b9a3da43ce035327ae29083e567191d60a6ac8
-Directory: 1.2/slim