fix(date-picker): range mode clearing first value (carbon-design-syst…

…em#10168)

### Related Ticket(s)

carbon-design-system#10088 

### Description

When a user clicked a range of calendar dates the first date would get cleared after clicking the second date.

Before:
![Feb-27-2023 10-24-46](https://user-images.githubusercontent.com/20210594/221636241-e2af785f-9936-4a07-93a0-d98d5bef9b3a.gif)

After:
![Feb-27-2023 10-22-48](https://user-images.githubusercontent.com/20210594/221635393-12029349-9683-4229-9898-b0daa4668da6.gif)

### Changelog

**Changed**

- downgraded flatpick to 4.6.9 ( the issue starts to appear in version 4.6.10)


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packages/carbon-web-components/package.json

@@ -69,7 +69,7 @@
   "dependencies": {
     "@babel/runtime": "^7.16.3",
     "carbon-components": "10.58.3",
-    "flatpickr": "4.6.13",
+    "flatpickr": "4.6.9",
     "lit-element": "^2.5.1",
     "lit-html": "^1.4.1",
     "lodash-es": "^4.17.21"