prebuild workflow updates

.github/workflows/prebuilds.yml

@@ -87,4 +87,32 @@ jobs:
           retention-days: 1
           name: couchnode-columnar-${{ inputs.version }}-sdist
           path: |
-            ./sdist/*.tgz
+            ./sdist/*.tgz
+
+  linux_x86_64_prebuild:
+    runs-on: ubuntu-20.04
+    needs: sdist
+    steps:
+      - uses: actions/download-artifact@v4
+        with:
+          name: couchnode-columnar-${{ inputs.version }}-sdist
+      - name: Extract sdist source
+        run: |
+          ls -alh
+          tar -xvzf couchbase-columnar-$COUCHNODE_COLUMNAR_VERSION.tgz
+          cp -r package/** .
+          rm -rf package
+        env:
+          COUCHNODE_COLUMNAR_VERSION: ${{ inputs.version }}
+      - name: Setup Node.js
+        uses: actions/setup-node@v4
+        with:
+          node-version: "18.x"
+      - name: Confirm Node version
+        run: node --version
+      - name: Install dependencies
+        run: |
+          npm ci --ignore-scripts
+      - name: Build binary
+        run: |
+          npm run prebuild -- --use-boringssl