chore: adding "github.vscode-pull-request-github" and "sugatoray.vscode-git-extension-pack" extentions (#2777)

Author: ibuziuk

.vscode/extensions.json

@@ -6,6 +6,8 @@
       "redhat.vscode-xml",
       "timonwong.shellcheck",
       "asciidoctor.asciidoctor-vscode",
+      "github.vscode-pull-request-github",
+      "sugatoray.vscode-git-extension-pack",
       "ChrisChinchilla.vale-vscode"
     ]
 }