Fix resource contention by making jobs sequential

- Add job dependencies to prevent parallel resource conflicts
- test-token-server waits for test-livekit-container
- test-speech-services waits for test-token-server
- Ensures LiveKit gets full resources like in working builds 19/23
- Eliminates network/memory pressure during builds

🤖 Generated with [Claude Code](https://claude.ai/code)

Co-Authored-By: Claude <noreply@anthropic.com>

Author: YedPool

.github/workflows/test-docker.yml

@@ -199,6 +199,7 @@ jobs:
   test-token-server:
     runs-on: ubuntu-latest
     timeout-minutes: 10
+    needs: test-livekit-container
 
     steps:
     - name: Checkout code
@@ -303,6 +304,7 @@ jobs:
   test-speech-services:
     runs-on: ubuntu-latest
     timeout-minutes: 20
+    needs: test-token-server
 
     steps:
     - name: Checkout code