Update golang

Changes:

- https://github.com/docker-library/golang/commit/963918c: Merge pull request https://github.com/docker-library/golang/pull/302 from thaJeztah/Dockerfile_nits
- https://github.com/docker-library/golang/commit/e52dbc6: Merge pull request https://github.com/docker-library/golang/pull/301 from thaJeztah/update_mingit
- https://github.com/docker-library/golang/commit/3a993b6: Windows: improve consistency in install verify steps
- https://github.com/docker-library/golang/commit/081f537: Windows: update MinGit to 2.23.0

library/golang

@@ -24,21 +24,21 @@ Directory: 1.13/alpine3.10
 Tags: 1.13.0-windowsservercore-ltsc2016, 1.13-windowsservercore-ltsc2016, 1-windowsservercore-ltsc2016, windowsservercore-ltsc2016
 SharedTags: 1.13.0-windowsservercore, 1.13-windowsservercore, 1-windowsservercore, windowsservercore, 1.13.0, 1.13, 1, latest
 Architectures: windows-amd64
-GitCommit: 2909cfd3ecb769671eb8222eaf9a782a6aed024d
+GitCommit: 963918ca305e07a1570c065eaa7ee58fc4c9c6ce
 Directory: 1.13/windows/windowsservercore-ltsc2016
 Constraints: windowsservercore-ltsc2016
 
 Tags: 1.13.0-windowsservercore-1803, 1.13-windowsservercore-1803, 1-windowsservercore-1803, windowsservercore-1803
 SharedTags: 1.13.0-windowsservercore, 1.13-windowsservercore, 1-windowsservercore, windowsservercore, 1.13.0, 1.13, 1, latest
 Architectures: windows-amd64
-GitCommit: 2909cfd3ecb769671eb8222eaf9a782a6aed024d
+GitCommit: 963918ca305e07a1570c065eaa7ee58fc4c9c6ce
 Directory: 1.13/windows/windowsservercore-1803
 Constraints: windowsservercore-1803
 
 Tags: 1.13.0-windowsservercore-1809, 1.13-windowsservercore-1809, 1-windowsservercore-1809, windowsservercore-1809
 SharedTags: 1.13.0-windowsservercore, 1.13-windowsservercore, 1-windowsservercore, windowsservercore, 1.13.0, 1.13, 1, latest
 Architectures: windows-amd64
-GitCommit: 2909cfd3ecb769671eb8222eaf9a782a6aed024d
+GitCommit: 963918ca305e07a1570c065eaa7ee58fc4c9c6ce
 Directory: 1.13/windows/windowsservercore-1809
 Constraints: windowsservercore-1809
 
@@ -80,21 +80,21 @@ Directory: 1.12/alpine3.9
 Tags: 1.12.9-windowsservercore-ltsc2016, 1.12-windowsservercore-ltsc2016
 SharedTags: 1.12.9-windowsservercore, 1.12-windowsservercore, 1.12.9, 1.12
 Architectures: windows-amd64
-GitCommit: 2f6469ffe955721dd25e4cbb3013506659998aad
+GitCommit: 963918ca305e07a1570c065eaa7ee58fc4c9c6ce
 Directory: 1.12/windows/windowsservercore-ltsc2016
 Constraints: windowsservercore-ltsc2016
 
 Tags: 1.12.9-windowsservercore-1803, 1.12-windowsservercore-1803
 SharedTags: 1.12.9-windowsservercore, 1.12-windowsservercore, 1.12.9, 1.12
 Architectures: windows-amd64
-GitCommit: 2f6469ffe955721dd25e4cbb3013506659998aad
+GitCommit: 963918ca305e07a1570c065eaa7ee58fc4c9c6ce
 Directory: 1.12/windows/windowsservercore-1803
 Constraints: windowsservercore-1803
 
 Tags: 1.12.9-windowsservercore-1809, 1.12-windowsservercore-1809
 SharedTags: 1.12.9-windowsservercore, 1.12-windowsservercore, 1.12.9, 1.12
 Architectures: windows-amd64
-GitCommit: 2f6469ffe955721dd25e4cbb3013506659998aad
+GitCommit: 963918ca305e07a1570c065eaa7ee58fc4c9c6ce
 Directory: 1.12/windows/windowsservercore-1809
 Constraints: windowsservercore-1809