rbac: fix invitations listing with restricted permissions (#8227) * rbac: fix missing permission definition for list * core: fix users's system_permissions not including role permissions * core: don't require permissions for users/me/ * web/admin: catch error when listing stages on invitation page fails * Revert "rbac: fix missing permission definition for list" This reverts commitfd7572e699. * Revert "core: don't require permissions for users/me/" This reverts commit9df0dbda8a. --------- Signed-off-by: Jens Langhammer <jens@goauthentik.io> Co-authored-by: Jens L <jens@goauthentik.io>