Update go plugin to 0.11.4 and use docker images with go 1.12.9 (#224)

Signed-off-by: Anatoliy Bazko <abazko@redhat.com>

v3/plugins/ms-vscode/go/0.11.4/meta.yaml

@@ -0,0 +1,22 @@
+apiVersion: v2
+publisher: ms-vscode
+name: go
+version: 0.11.4
+type: VS Code extension
+displayName: Go
+title: Rich Go language support
+description: This extension adds rich language support for the Go language
+icon: https://www.eclipse.org/che/images/logo-eclipseche.svg
+repository: https://github.com/Microsoft/vscode-go.git
+category: Language
+firstPublicationDate: '2019-09-19'
+spec:
+  containers:
+    - image: "docker.io/eclipse/che-remote-plugin-go-1.12.9:next"
+      name: vscode-go
+      memoryLimit: '512Mi'
+      env:
+      - name: GOPATH
+        value: /go:$(CHE_PROJECTS_ROOT)
+  extensions:
+    - https://github.com/microsoft/vscode-go/releases/download/0.11.4/Go-0.11.4.vsix

v3/plugins/ms-vscode/go/latest/meta.yaml

@@ -9,14 +9,14 @@ description: This extension adds rich language support for the Go language
 icon: https://www.eclipse.org/che/images/logo-eclipseche.svg
 repository: https://github.com/Microsoft/vscode-go.git
 category: Language
-firstPublicationDate: '2019-06-20'
+firstPublicationDate: '2019-09-19'
 spec:
   containers:
-    - image: "docker.io/eclipse/che-remote-plugin-go-1.10.7:next"
+    - image: "docker.io/eclipse/che-remote-plugin-go-1.12.9:next"
       name: vscode-go
       memoryLimit: '512Mi'
       env:
       - name: GOPATH
         value: /go:$(CHE_PROJECTS_ROOT)
   extensions:
-    - https://github.com/microsoft/vscode-go/releases/download/0.11.0/Go-0.11.0.vsix
+    - https://github.com/microsoft/vscode-go/releases/download/0.11.4/Go-0.11.4.vsix