v77.1.0

• Updated EuiDatePicker to display a warning icon and correctly set aria-invalid when isInvalid is passed (#6677)
• Updated EuiFilePicker to display an alert icon when isInvalid (#6678)
• Updated EuiTextArea to display an alert icon when isInvalid (#6679)
• Updated EuiTextArea to support the isLoading prop (#6679)
• Updated EuiComboBox to display a warning icon and correctly set aria-invalid when isInvalid is passed (#6680)

Bug fixes

• Fixed EuiAccordion to not set an aria-expanded attribute on non-interactive buttonElements (#6694)
• Fixed an EuiPopoverFooter bug causing nested popovers within popovers (note: not a recommended use-case) to unintentionally override its panel padding size inherited from context (#6698)
• Fixed EuiComboBox to only delete the last selected item on backspace if the input caret is present (#6699)