add migration to uniformly change the label column to a length of 2048
add migration to uniformly change the label column to a length of 2048

Signed-off-by: binsky <98c2d5a1e48c998bd9ba9dbc53d6857beae1c9bd@binsky.org>

nextcloud/passman,nextcloud/passman,nextcloud/passman,nextcloud/passman