fix: use new set-output (#310)

https://github.blog/changelog/2022-10-11-github-actions-deprecating-save-state-and-set-output-commands/

Author: ueokande

.github/workflows/build.yml

@@ -13,7 +13,7 @@ jobs:
       - uses: actions/checkout@v3
       - name: Get yarn cache directory path
         id: yarn-cache-dir-path
-        run: echo "::set-output name=dir::$(yarn cache dir)"
+        run: echo "dir=$(yarn config get cacheFolder)" >> $GITHUB_OUTPUT
       - uses: actions/cache@v3
         with:
           path: ${{ steps.yarn-cache-dir-path.outputs.dir }}