fix(input-date-picker): prevent console error when using a lang (#10162)

**Related Issue:** #9387

## Summary

- creates `dateTimeFormat` on connectedCallback to prevent console error
from occurring.

Author: driskull

packages/calcite-components/src/components/input-date-picker/input-date-picker.tsx

@@ -468,6 +468,7 @@ export class InputDatePicker
   connectedCallback(): void {
     connectInteractive(this);
     connectLocalized(this);
+    this.handleDateTimeFormatChange();
 
     const { open } = this;
     open && this.openHandler();