build: release preview package when triggered via comment (#4750)

* build: autorelease preview on every commit during pull request

* add github workflow

* update readme

* update docs

* log changed files

* remove depth

* fetch pr head

* remove console.log

* log pr number

* pull pr number

* use pull request number in release version

* dummy

* dummy

* dummy

* fix

* dummy

* fix

* Add comment and set output as version

* dummy

* fix

* fix

* set output through js toolkit

* install

* dummy

* update

* fix

* fix

* typo

* update

* condition

* typo

* testing

* wrap conditions

* echo

* hope it works

* test

* test

* yay test again

* test updated

* remove reaction

* run if comment triggered

* fix

* fix

* Update script after testing in fork

* remove

* update changelog

* update readme

* update

* remove

* append pr number then commit hash

src/packages/excalidraw/CHANGELOG.md

@@ -75,6 +75,14 @@ Please add the latest change on the top under the correct section.
 
 ### Build
 
+- Release preview package [@excalidraw/excalidraw-preview](https://www.npmjs.com/package/@excalidraw/excalidraw-preview) when triggered via comment
+
+```
+ @excalibot trigger release
+```
+
+[#4750](https://github.com/excalidraw/excalidraw/pull/4750).
+
 - Added an example to test and develop the package [locally](https://github.com/excalidraw/excalidraw/blob/master/src/packages/excalidraw/README.md#Development) using `yarn start` [#4488](https://github.com/excalidraw/excalidraw/pull/4488)
 
 - Remove `file-loader` so font assets are not duplicated by webpack and use webpack asset modules for font generation [#4380](https://github.com/excalidraw/excalidraw/pull/4380).

src/packages/excalidraw/README_NEXT.md

@@ -1061,3 +1061,13 @@ yarn start
 [http://localhost:3001](http://localhost:3001) will open in your default browser.
 
 The example is same as the [codesandbox example](https://ehlz3.csb.app/)
+
+#### Create a test release
+
+You can create a test release by posting the below comment in your pull request
+
+```
+@excalibot trigger release
+```
+
+Once the version is released `@excalibot` will post a comment with the release version.