[DataGrid] Add key prop to GridFilterInputMultipleValue

[sai6855]

Closes #14299

• I have followed (at least) the PR section of the contributing guide.

[mui-bot]

Deploy preview: https://deploy-preview-14302--material-ui-x.netlify.app/

Generated by 🚫 dangerJS against 54252b9

[sai6855]

This logic is taken from

mui-x/packages/x-data-grid/src/components/panel/filterPanel/GridFilterInputMultipleSingleSelect.tsx

Lines 110 to 120 in 45b2835

	renderTags={(value, getTagProps) =>
	value.map((option, index) => {
	const { key, ...tagProps } = getTagProps({ index });
	return (
	<rootProps.slots.baseChip
	key={key}
	variant="outlined"
	size="small"
	label={getOptionLabel(option)}
	{...tagProps}
	/>

[MBilalShafi]

Thank you!