Refactor build workflow to streamline AWS credentials configuration f…

…or Cloudflare R2 uploads

.github/workflows/build_tools.yaml

@@ -13,16 +13,7 @@ jobs:
       contents: write
 
     steps:
-      - name: Checkout code
-        uses: actions/checkout@v3
-
-      - name: Configure AWS Credentials
-        uses: aws-actions/configure-aws-credentials@v2
-        with:
-          aws-access-key-id: ${{ secrets.R2_ACCESS_KEY_ID }}
-          aws-secret-access-key: ${{ secrets.R2_SECRET_ACCESS_KEY }}
-          aws-region: auto
-          aws-endpoint-url: https://${{ secrets.CLOUDFLARE_ACCOUNT_ID }}.r2.cloudflarestorage.com
+      - uses: actions/checkout@v3
 
       - name: Install dependencies
         run: |
@@ -62,9 +53,14 @@ jobs:
       - name: Upload to Cloudflare R2
         if: steps.run_node.outcome == 'success'
         env:
+          R2_ACCESS_KEY_ID: ${{ secrets.R2_ACCESS_KEY_ID }}
+          R2_SECRET_ACCESS_KEY: ${{ secrets.R2_SECRET_ACCESS_KEY }}
           R2_BUCKET: ${{ secrets.R2_BUCKET }}
           CLOUDFLARE_ACCOUNT_ID: ${{ secrets.CLOUDFLARE_ACCOUNT_ID }}
         run: |
+          export AWS_ACCESS_KEY_ID=${R2_ACCESS_KEY_ID}
+          export AWS_SECRET_ACCESS_KEY=${R2_SECRET_ACCESS_KEY}
+          export AWS_ENDPOINT_URL=https://${CLOUDFLARE_ACCOUNT_ID}.r2.cloudflarestorage.com
           aws s3 sync ./packages/ s3://${R2_BUCKET}/shinkai-tools/ \
             --endpoint-url https://${CLOUDFLARE_ACCOUNT_ID}.r2.cloudflarestorage.com \
             --only-show-errors