ci: add bun setup and install to release workflow

Adds Bun package manager setup and installation steps to the CI release workflow
for both main and release jobs, replacing npm with bun for dependency management

Author: involvex

.github/workflows/ci-release.yml

@@ -52,6 +52,10 @@ jobs:
           node-version: '22'
           cache: 'npm'
 
+      - name: Setup Bun
+        uses: oven-sh/setup-bun@v2
+        with:
+          bun-version: 'latest'
       - name: Install dependencies
         run: bun install
 
@@ -76,6 +80,10 @@ jobs:
           cache: 'npm'
           registry-url: 'https://registry.npmjs.org/'
 
+      - name: Setup Bun
+        uses: oven-sh/setup-bun@v2
+        with:
+          bun-version: 'latest'
       - name: Install dependencies
         run: bun install