Replace deprecated command with environment file (#311)

Author: jongwooo

.github/workflows/main.yml

@@ -29,7 +29,7 @@ jobs:
       - name: Get pnpm store directory
         id: pnpm-cache
         run: |
-          echo "::set-output name=pnpm_cache_dir::$(pnpm store path)"
+          echo "pnpm_cache_dir=$(pnpm store path)" >> $GITHUB_OUTPUT
 
       - uses: actions/cache@v3
         name: Setup pnpm cache

.github/workflows/release.yml

@@ -27,7 +27,7 @@ jobs:
       - name: Get pnpm store directory
         id: pnpm-cache
         run: |
-          echo "::set-output name=pnpm_cache_dir::$(pnpm store path)"
+          echo "pnpm_cache_dir=$(pnpm store path)" >> $GITHUB_OUTPUT
 
       - uses: actions/cache@v3
         name: Setup pnpm cache