fix:fixed parseTime bug in ie and safari(#3066)

* /src/utils/index.js parseTime 添加IE浏览器（版本10以下，包括版本10）兼容。

* perf: update

Co-authored-by: aisen60 <aisen60@qq.com>
Co-authored-by: 花裤衩 <panfree23@gmail.com>

tests/unit/utils/parseTime.spec.js

@@ -4,6 +4,11 @@ describe('Utils:parseTime', () => {
   it('timestamp', () => {
     expect(parseTime(d)).toBe('2018-07-13 17:54:01')
   })
+
+  it('timestamp string', () => {
+    expect(parseTime((d + ''))).toBe('2018-07-13 17:54:01')
+  })
+
   it('ten digits timestamp', () => {
     expect(parseTime((d / 1000).toFixed(0))).toBe('2018-07-13 17:54:01')
   })