[CI] Ensure container cleanup after job to avoid resource leakage (#7315)

* [CI] Ensure container cleanup after job to avoid resource leakage

* [CI] Use prebuilt wheels to install xgrammar==0.1.19 and torch==2.6.0

.github/workflows/_accuracy_test.yml

@@ -160,7 +160,8 @@ jobs:
             docker rm -f ${runner_name} || true
           fi
 
-          docker run --rm --ipc=host --pid=host --net=host \
+          docker run --rm --net=host \
+          --shm-size=64G \
           --name ${runner_name} \
           -v $(pwd):/workspace \
           -w /workspace \
@@ -220,3 +221,10 @@ jobs:
           fi
           echo "TEST_EXIT_CODE=${TEST_EXIT_CODE}"
           exit ${TEST_EXIT_CODE}
+
+      - name: Terminate and delete the container
+        if: always()
+        run: |
+          set +e
+          docker exec -t ${{ runner.name }} /bin/bash -c 'find /workspace -mindepth 1 -delete'
+          docker rm -f ${{ runner.name }}