add separate workflow

.github/workflows/upload-to-s3.yaml

@@ -0,0 +1,35 @@
+name: Upload Package All artifacts to S3
+
+on:
+  workflow_dispatch:
+    inputs:
+      memgraph_version:
+        description: "Memgraph version to upload as."
+        required: true
+      run_number:
+        description: "# of the package_all workflow run to upload artifacts from."
+        required: true
+
+jobs:
+  upload-to-s3:
+    runs-on: ubuntu-latest
+    steps:
+      - name: Download artifacts
+        uses: dawidd6/action-download-artifact@v2
+        with:
+          workflow: package_all.yaml
+          workflow_conclusion: success
+          run_number: "${{ github.event.inputs.run_number }}"
+          path: build/output/release
+      - name: Get release version
+        run: |
+          echo "RELEASE_VERSION=${{ github.events.inputs.memgraph_version }}"
+      - name: Upload to S3
+        uses: jakejarvis/s3-sync-actions@v0.5.1
+        env:
+          AWS_S3_BUCKET: "download.memgraph.com"
+          AWS_ACCESS_KEY_ID: ${{ secrets.S3_AWS_ACCESS_KEY_ID }}
+          AWS_SECRET_ACCESS_KEY: ${{ secrets.S3_AWS_SECRET_ACCESS_KEY }}
+          AWS_REGION: "eu-west-1"
+          SOURCE_DIR: "build/output/release"
+          DEST_DIR: "memgraph/${{ env.RELEASE_VERSION  }}"