chore: add Bun setup to CI workflow and remove pnpm version specification

Author: JoseRFelix

.github/workflows/main.yml

@@ -17,6 +17,9 @@ jobs:
           node-version: 20.x
           cache: pnpm
 
+      - name: Setup Bun
+        uses: oven-sh/setup-bun@v2
+
       - name: Install dependencies
         run: pnpm install --frozen-lockfile
         env:
@@ -50,15 +53,16 @@ jobs:
 
       - name: Setup pnpm
         uses: pnpm/action-setup@v4
-        with:
-          version: 10
 
       - name: Use Node 20
         uses: actions/setup-node@v4
         with:
           node-version: 20.x
           cache: pnpm
 
+      - name: Setup Bun
+        uses: oven-sh/setup-bun@v2
+
       - name: Install dependencies
         run: pnpm install --frozen-lockfile
         env: