fix: update CI to use pnpm instead of npm

The project was switched to pnpm but the GitHub Action was still
using npm caching, causing CI failures due to missing lock files.

Author: mattapperson

.github/actions/validate-sdk/action.yaml

@@ -9,53 +9,58 @@ inputs:
 runs:
   using: 'composite'
   steps:
+    - name: Install pnpm
+      uses: pnpm/action-setup@v4
+      with:
+        version: 10
+
     - name: Setup Node.js
       uses: actions/setup-node@v4
       with:
         node-version: '22'
-        cache: 'npm'
+        cache: 'pnpm'
 
     - name: Install dependencies
       shell: bash
-      run: npm install
+      run: pnpm install
 
     - name: Build SDK
       shell: bash
-      run: npm run build
+      run: pnpm run build
 
     - name: Typecheck tests directory
       shell: bash
-      run: npx tsc --noEmit --skipLibCheck --esModuleInterop --moduleResolution node --module esnext --target es2020 tests/**/*.ts
+      run: pnpm exec tsc --noEmit --skipLibCheck --esModuleInterop --moduleResolution node --module esnext --target es2020 tests/**/*.ts
 
     - name: Install examples dependencies
       shell: bash
       working-directory: examples
-      run: npm install
+      run: pnpm install
 
     # TODO: Re-enable when Speakeasy fixes generated code type errors
     - name: Typecheck examples root
       shell: bash
       working-directory: examples
-      run: npx tsc
+      run: pnpm exec tsc
 
     - name: Install nextjs-example dependencies
       shell: bash
       working-directory: examples/nextjs-example
-      run: npm install
+      run: pnpm install
 
     - name: Typecheck nextjs-example
       shell: bash
       working-directory: examples/nextjs-example
-      run: npx tsc --noEmit
+      run: pnpm exec tsc --noEmit
 
     - name: Run unit tests
       shell: bash
       env:
         OPENROUTER_API_KEY: ${{ inputs.openrouter-api-key }}
-      run: npx vitest --run --exclude 'tests/e2e/**'
+      run: pnpm exec vitest --run --exclude 'tests/e2e/**'
 
     - name: Run e2e tests
       shell: bash
       env:
         OPENROUTER_API_KEY: ${{ inputs.openrouter-api-key }}
-      run: npx vitest --run tests/e2e/
+      run: pnpm exec vitest --run tests/e2e/

.gitignore

@@ -30,4 +30,6 @@
 .env.*.local
 /examples/.env
 /examples/package-lock.json
+/examples/nextjs-example/package-lock.json
+/examples/nextjs-example/package.lock.json
 /temp