Update docker-library images

- `ghost`: 1.13.0
- `python`: apply Windows quoting consistently
- `ruby`: rubygems 2.6.14

library/ghost

@@ -4,14 +4,14 @@ Maintainers: Tianon Gravi <[email protected]> (@tianon),
              Joseph Ferguson <[email protected]> (@yosifkit)
 GitRepo: https://github.com/docker-library/ghost.git
 
-Tags: 1.12.1, 1.12, 1, latest
+Tags: 1.13.0, 1.13, 1, latest
 Architectures: amd64, arm32v7, arm64v8, ppc64le, s390x
-GitCommit: cc73035bd286b3169d04522cfa64f24daa8e76c2
+GitCommit: 6ebc6712a201c82c039e81c55ca58b67aa1f2033
 Directory: 1/debian
 
-Tags: 1.12.1-alpine, 1.12-alpine, 1-alpine, alpine
+Tags: 1.13.0-alpine, 1.13-alpine, 1-alpine, alpine
 Architectures: amd64
-GitCommit: cc73035bd286b3169d04522cfa64f24daa8e76c2
+GitCommit: 6ebc6712a201c82c039e81c55ca58b67aa1f2033
 Directory: 1/alpine
 
 Tags: 0.11.11, 0.11, 0

library/python

@@ -61,7 +61,7 @@ Directory: 3.6/alpine3.4
 Tags: 3.6.3-windowsservercore, 3.6-windowsservercore, 3-windowsservercore, windowsservercore
 SharedTags: 3.6.3, 3.6, 3, latest
 Architectures: windows-amd64
-GitCommit: 9524a26b67ebc8ea48ceaaf6750f5f6caf89478e
+GitCommit: e01eb54f3c70555cf661dd756d529c85fd2cc04f
 Directory: 3.6/windows/windowsservercore
 Constraints: windowsservercore
 

library/ruby

@@ -6,22 +6,22 @@ GitRepo: https://github.com/docker-library/ruby.git
 
 Tags: 2.4.2-stretch, 2.4-stretch, 2-stretch, stretch
 Architectures: amd64, arm32v5, arm32v7, arm64v8, i386, ppc64le, s390x
-GitCommit: beb05c8c3c694e4527effe3e3623120486d0e5ed
+GitCommit: 9390129c08cc19668fc482edfd7d7c5a890a80eb
 Directory: 2.4/stretch
 
 Tags: 2.4.2-slim-stretch, 2.4-slim-stretch, 2-slim-stretch, slim-stretch
 Architectures: amd64, arm32v5, arm32v7, arm64v8, i386, ppc64le, s390x
-GitCommit: beb05c8c3c694e4527effe3e3623120486d0e5ed
+GitCommit: 9390129c08cc19668fc482edfd7d7c5a890a80eb
 Directory: 2.4/stretch/slim
 
 Tags: 2.4.2-jessie, 2.4-jessie, 2-jessie, jessie, 2.4.2, 2.4, 2, latest
 Architectures: amd64, arm32v5, arm32v7, arm64v8, i386, ppc64le, s390x
-GitCommit: beb05c8c3c694e4527effe3e3623120486d0e5ed
+GitCommit: 9390129c08cc19668fc482edfd7d7c5a890a80eb
 Directory: 2.4/jessie
 
 Tags: 2.4.2-slim-jessie, 2.4-slim-jessie, 2-slim-jessie, slim-jessie, 2.4.2-slim, 2.4-slim, 2-slim, slim
 Architectures: amd64, arm32v5, arm32v7, arm64v8, i386, ppc64le, s390x
-GitCommit: beb05c8c3c694e4527effe3e3623120486d0e5ed
+GitCommit: 9390129c08cc19668fc482edfd7d7c5a890a80eb
 Directory: 2.4/jessie/slim
 
 Tags: 2.4.2-onbuild, 2.4-onbuild, 2-onbuild, onbuild
@@ -31,22 +31,22 @@ Directory: 2.4/jessie/onbuild
 
 Tags: 2.4.2-alpine3.6, 2.4-alpine3.6, 2-alpine3.6, alpine3.6
 Architectures: amd64
-GitCommit: c9838b69af941637d68bbbaff70fee4402b715cb
+GitCommit: 9390129c08cc19668fc482edfd7d7c5a890a80eb
 Directory: 2.4/alpine3.6
 
 Tags: 2.4.2-alpine3.4, 2.4-alpine3.4, 2-alpine3.4, alpine3.4, 2.4.2-alpine, 2.4-alpine, 2-alpine, alpine
 Architectures: amd64
-GitCommit: c9838b69af941637d68bbbaff70fee4402b715cb
+GitCommit: 9390129c08cc19668fc482edfd7d7c5a890a80eb
 Directory: 2.4/alpine3.4
 
 Tags: 2.3.5-jessie, 2.3-jessie, 2.3.5, 2.3
 Architectures: amd64, arm32v5, arm32v7, arm64v8, i386, ppc64le, s390x
-GitCommit: 1ec8021cd6a22a1122d35ca68c395a85c093658c
+GitCommit: 104e3aeadd3c2ea1597be3cd407551faab802ecb
 Directory: 2.3/jessie
 
 Tags: 2.3.5-slim-jessie, 2.3-slim-jessie, 2.3.5-slim, 2.3-slim
 Architectures: amd64, arm32v5, arm32v7, arm64v8, i386, ppc64le, s390x
-GitCommit: 1ec8021cd6a22a1122d35ca68c395a85c093658c
+GitCommit: 104e3aeadd3c2ea1597be3cd407551faab802ecb
 Directory: 2.3/jessie/slim
 
 Tags: 2.3.5-onbuild, 2.3-onbuild
@@ -56,17 +56,17 @@ Directory: 2.3/jessie/onbuild
 
 Tags: 2.3.5-alpine3.4, 2.3-alpine3.4, 2.3.5-alpine, 2.3-alpine
 Architectures: amd64
-GitCommit: c9838b69af941637d68bbbaff70fee4402b715cb
+GitCommit: 104e3aeadd3c2ea1597be3cd407551faab802ecb
 Directory: 2.3/alpine3.4
 
 Tags: 2.2.8-jessie, 2.2-jessie, 2.2.8, 2.2
 Architectures: amd64, arm32v5, arm32v7, arm64v8, i386, ppc64le, s390x
-GitCommit: c1f97577cd4f73ae0968f417dd74a1fd7a6f0cce
+GitCommit: 59abfdf2c6aaeab159aeb46c762c178e76900c0f
 Directory: 2.2/jessie
 
 Tags: 2.2.8-slim-jessie, 2.2-slim-jessie, 2.2.8-slim, 2.2-slim
 Architectures: amd64, arm32v5, arm32v7, arm64v8, i386, ppc64le, s390x
-GitCommit: c1f97577cd4f73ae0968f417dd74a1fd7a6f0cce
+GitCommit: 59abfdf2c6aaeab159aeb46c762c178e76900c0f
 Directory: 2.2/jessie/slim
 
 Tags: 2.2.8-onbuild, 2.2-onbuild
@@ -76,5 +76,5 @@ Directory: 2.2/jessie/onbuild
 
 Tags: 2.2.8-alpine3.4, 2.2-alpine3.4, 2.2.8-alpine, 2.2-alpine
 Architectures: amd64
-GitCommit: c9838b69af941637d68bbbaff70fee4402b715cb
+GitCommit: 59abfdf2c6aaeab159aeb46c762c178e76900c0f
 Directory: 2.2/alpine3.4