Improvements (#27)

Author: Stinobe

.changeset/cool-spies-beg.md

@@ -0,0 +1,5 @@
+---
+"@stinobe/mattr": patch
+---
+
+Optimize package size

.github/workflows/release.yml

@@ -55,7 +55,7 @@ jobs:
           NPM_TOKEN: ${{ secrets.NPMJS_PUBLISHING_TOKEN }}
 
       - name: Release to GitHub
-        if: steps.changesets.outputs.hasChangesets == 'false'
+        if: steps.changesets.outputs.published == 'true'
         run: |
           pnpm config set //npm.pkg.github.com/:_authToken "${NODE_AUTH_TOKEN}"
           pnpm config set @Stinobe:registry "https://npm.pkg.github.com"