test: unexpected warning showed during test

[l7wei]

Some unexpected warning showed during test.

• GitHub Action Log

/home/runner/work/NTHU-Data-API/NTHU-Data-API/src/api/models/buses.py:162: SyntaxWarning: invalid escape sequence '\{'
  regex_pattern = r"const " + variable_string + " = (\{.*?\})"
/home/runner/work/NTHU-Data-API/NTHU-Data-API/src/api/models/buses.py:180: SyntaxWarning: invalid escape sequence '\['
  regex_pattern = r"const " + variable_string + " = (\[.*?\])"
<unknown>:162: SyntaxWarning: invalid escape sequence '\{'
<unknown>:180: SyntaxWarning: invalid escape sequence '\['
/home/runner/work/NTHU-Data-API/NTHU-Data-API/src/api/models/buses.py:162: SyntaxWarning: invalid escape sequence '\{'
  regex_pattern = r"const " + variable_string + " = (\{.*?\})"
/home/runner/work/NTHU-Data-API/NTHU-Data-API/src/api/models/buses.py:180: SyntaxWarning: invalid escape sequence '\['
  regex_pattern = r"const " + variable_string + " = (\[.*?\])"

DeprecationWarning: `example` has been deprecated, please use `examples` instead

[iwtba4188]

DeprecationWarning: `example` has been deprecated, please use `examples` instead

• 雖然 example 已經被棄用了，但感覺是最符合目前情況的用法，因為它會精簡的顯示在欄位上：
  

• 新的 examples 會在 openapi.json 做更恰當的註記，但 Swagger UI 並不會顯示出來：
  

(略)
        "/buses/stops/{stop_name}/{bus_type}/{day}/{direction}": {
            "get": {
                "tags": [
                    "Buses"
                ],
                "summary": "Get Stop Up",
                "description": "取得公車站牌停靠公車資訊。",
                "operationId": "get_stop_up_buses_stops__stop_name___bus_type___day___direction__get",
                "parameters": [
                    {
                        "name": "stop_name",
                        "in": "path",
                        "required": true,
                        "schema": {
                            "allOf": [
                                {
                                    "$ref": "#/components/schemas/StopsName"
                                }
                            ],
                            "description": "公車站牌名稱",
                            "examples": [
                                "台積館"
                            ],
                            "title": "Stop Name"
                        },
                        "description": "公車站牌名稱"
                    },
(略)

• 而使用可正常顯示的參數 openapi_examples 又顯得下拉式選單過於冗餘，因為多數情況下範例只會有一個：
  

• fastapi 的作者也有就這個議題做過回應：ref

[iwtba4188]

btw, 如果想要眼不見為淨的話可以加上 -W ignore::DeprecationWarning 世界就安靜ㄌ
ref