chore(vscode): update to 1.53.2

These conflicts will be resolved in the following commits. We do it this way so
that PR review is possible.

lib/vscode/.github/actions/build-chat/action.yml

@@ -0,0 +1,10 @@
+name: 'Build Chat'
+description: 'Notify in chat about build results.'
+author: 'Christof Marti'
+inputs:
+  workflow_run_url:
+    description: 'Workflow run URL of the completed build.'
+    required: true
+runs:
+  using: 'node12'
+  main: 'dist/main.js'