ci(distribution): auto-release winget #19121

- forked winget-pkgs to https://github.com/neovim/winget-pkgs
- key stored in WINGET_TOKEN at https://github.com/neovim/neovim/settings/secrets/actions
- deploy key public key stored at https://github.com/neovim/winget-pkgs/settings/keys

.github/workflows/release-winget.yml

@@ -0,0 +1,12 @@
+name: Publish to WinGet
+on:
+  release:
+    types: [released]
+jobs:
+  publish:
+    runs-on: windows-latest # action can only be run on windows
+    steps:
+      - uses: vedantmgoyal2009/winget-releaser@latest
+        with:
+          identifier: Neovim.Neovim
+          token: ${{ secrets.WINGET_TOKEN }}