This patch adds github action badge.
Signed-off-by: Dongju Chae <dongju.chae@samsung.com>
[![SAM Score](https://github.sec.samsung.net/nnsuite/n2s2/blob/master/AIP_NPU_SystemService/badges/samscore.svg)](https://code.sec.samsung.net/architecturemanager/app/sam/NPU_SystemService/npu-engine/latest/overview)
[![Issues](https://github.sec.samsung.net/nnsuite/n2s2/blob/master/AIP_NPU_SystemService/badges/issues.svg)](https://github.sec.samsung.net/AIP/NPU_SystemService/issues)
[![Pull Requests](https://github.sec.samsung.net/nnsuite/n2s2/blob/master/AIP_NPU_SystemService/badges/pulls.svg)](https://github.sec.samsung.net/AIP/NPU_SystemService/pulls)
+[![artifacts-ubuntu](https://github.sec.samsung.net/AIP/NPU_SystemService/workflows/artifacts-ubuntu/badge.svg)](https://github.sec.samsung.net/AIP/NPU_SystemService/actions?query=workflow%3Aartifacts-ubuntu)
## Directory Structure
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