Fix Deno setup for release preparation

.github/workflows/prepare-release.yml

@@ -45,6 +45,11 @@ jobs:
                   node-version: "24.x"
                   cache: npm
 
+            - name: Use Deno
+              uses: denoland/setup-deno@v2
+              with:
+                  deno-version: v2.x
+
             - name: Install dependencies
               run: npm ci