feat: Update to new GH artifacts (v4) (#6)

Author: mydea

README.md

@@ -31,11 +31,15 @@ jobs:
         run: echo "version=${{ steps.head_version.outputs.match }}" >> $GITHUB_OUTPUT
 
       - name: Update Github Release
-        uses: getsentry/size-limit-release@main
+        uses: getsentry/size-limit-release@v2
         with:
           github_token: ${{ secrets.GITHUB_TOKEN }}
           version: ${{ steps.get_version.outputs.version }}
           workflow_name: 'build.yml'
 ```
 
-Note that this will not do anything if it detects that size limit information has already been added to the release.
+Note that this will not do anything if it detects that size limit information has already been added to the release.
+
+The v2 tag of this assumes that you upload your size limit data with v4 of the upload-artifacts action. 
+
+If you are uploading data with v3 of upload-artifacts, use the v1 tag.

action.yml

@@ -18,5 +18,5 @@ inputs:
     required: false
     description: Optionally, define a branch to fetch size limit info from. Defaults to `release/VERSION`.
 runs:
-  using: "node16"
+  using: "node20"
   main: "dist/index.js"