ci: add pull request permissions to SDK action

This commit ensure that the SDK generation action has enough
permissions.

.github/workflows/update-sdks.yaml

@@ -5,6 +5,10 @@ on:
     types: [update-ai-openapi]
   workflow_dispatch:
 
+permissions:
+  contents: write
+  pull-requests: write
+
 jobs:
   update-ai-sdks:
     runs-on: ubuntu-latest
@@ -16,7 +20,7 @@ jobs:
       - name: Setup Node.js
         uses: actions/setup-node@v4
         with:
-          node-version: '20'
+          node-version: "20"
 
       - name: Checkout ai-worker repository
         uses: actions/checkout@v4
@@ -36,11 +40,10 @@ jobs:
           pip install -r ai-worker/runner/requirements.txt
 
       - name: Generate AI OpenAPI specification
+        working-directory: runner
         run: |
-          cd ai-worker/runner
           python gen_openapi.py --entrypoint gateway
           mv openapi_gateway.json $GITHUB_WORKSPACE/openapi_ai_gateway.json
-          cd $GITHUB_WORKSPACE
 
       - name: Generate AI SDKs
         run: |
@@ -56,9 +59,7 @@ jobs:
           commit-message: "chore: update AI SDKs"
           title: "Automated AI SDKs update"
           body: |
-            This is an automated pull request to update the AI SDKS due to changes in \
-            the AI Worker OpenAPI specification (upstream commit \
-            [${{ github.event.client_payload.sha}})](https://livepeer/ai-worker/commit/${{github.event.client_payload.sha }})).
+            This is an automated pull request to update the AI SDKs due to changes in the AI Worker OpenAPI specification (upstream commit [${{github.event.client_payload.sha}}](https://livepeer/ai-worker/commit/${{github.event.client_payload.sha}})).
           branch: "update-openapi-spec"
           base: "main"
-          author: "GitHub Actions <actions@github.com>"
+          author: "github-actions[bot] <github-actions[bot]@users.noreply.github.com>"