Fix Debian build and upgrade to Node.js 24

Remove phantom `npm rebuild better-sqlite3` step that fails because
better-sqlite3 is not a project dependency. Upgrade all workflows
from Node.js 20 to 24.

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

Author: ozgesolidkey

.github/workflows/benchmark.yml

@@ -16,7 +16,7 @@ jobs:
       - name: Setup Node.js
         uses: actions/setup-node@v4
         with:
-          node-version: 20
+          node-version: 24
           cache: 'npm'
 
       - name: Install dependencies

.github/workflows/ci.yml

@@ -13,7 +13,7 @@ jobs:
     strategy:
       matrix:
         os: [macos-latest, ubuntu-latest, windows-latest]
-        node-version: [20]
+        node-version: [24]
 
     steps:
       - name: Checkout code
@@ -35,9 +35,6 @@ jobs:
       - name: Type check
         run: npm run typecheck
 
-      - name: Rebuild native modules for Node.js (tests run on Node, not Electron)
-        run: npm rebuild better-sqlite3
-
       - name: Run tests
         run: npm test
 

.github/workflows/release.yml

@@ -26,7 +26,7 @@ jobs:
       - name: Setup Node.js
         uses: actions/setup-node@v4
         with:
-          node-version: 20
+          node-version: 24
           cache: 'npm'
 
       - name: Install Linux build dependencies
@@ -36,9 +36,6 @@ jobs:
       - name: Install dependencies
         run: npm ci
 
-      - name: Rebuild native modules for Node.js (tests run on Node, not Electron)
-        run: npm rebuild better-sqlite3
-
       - name: Run tests
         run: npm test