fix(ci): use file instead of output for changelog

Author: kirasok

.github/workflows/release.yml

@@ -33,8 +33,6 @@ jobs:
     name: Generate changelog
     runs-on: ubuntu-latest
     needs: version
-    outputs:
-      changelog: ${{steps.changelog-generator.outputs.changelog}}
     steps:
       - uses: actions/checkout@v4
       - name: Hack around https://github.com/actions/checkout/issues/290
@@ -55,9 +53,11 @@ jobs:
         id: changelog-generator
         run: |
           dart pub global run changelog_cli generate -P markdown -s ${{needs.version.outputs.prev-version}} -e ${{needs.version.outputs.version}} > CHANGELOG.md
-          CHANGELOG="$(cat CHANGELOG.md)"
-          echo "$CHANGELOG"
-          echo "changelog=$CHANGELOG" >> "$GITHUB_OUTPUT"
+      - name: Upload changelog
+        uses: actions/upload-artifact@v4
+        with:
+          name: changelog
+          path: CHANGELOG.md
   build-apk:
     name: Build APK
     runs-on: ubuntu-latest
@@ -154,7 +154,7 @@ jobs:
         uses: softprops/[email protected]
         with:
           tag_name: ${{ needs.version.outputs.version }}
-          body: ${{needs.changelog.outputs.changelog}}
+          bodyFile: ${{steps.download.outputs.download-path}}/CHANGELOG.md
           files: |
             ${{steps.download.outputs.download-path}}/**/*
   build-web: