fix prettier (#19221)

Author: leniatgh

.prettierrc.json

@@ -11,7 +11,8 @@
           "./scripts/prettier-swagger-plugin"
         ],
         "parser": "json-swagger",
-        "printWidth": 20
+        "printWidth": 20,
+        "endOfLine": "auto"
       }
     },
     {
@@ -20,7 +21,8 @@
       ],
       "options": {
         "parser": "json",
-        "printWidth": 20
+        "printWidth": 20,
+        "endOfLine": "auto"
       },
       "excludeFiles": [
         "specification/**/*.json"