Migrate `pallet-membership` to the new pallet attribute macro (#9080)

* Migrate pallet-membership to new pallet attribute macro

Signed-off-by: koushiro <[email protected]>

* Add migrations

Signed-off-by: koushiro <[email protected]>

* more general

Signed-off-by: koushiro <[email protected]>

* fix event metadata

Signed-off-by: koushiro <[email protected]>

* some nits

Signed-off-by: koushiro <[email protected]>

* fix some nits

Signed-off-by: koushiro <[email protected]>

* apply suggestion

Signed-off-by: koushiro <[email protected]>

* some nits

Signed-off-by: koushiro <[email protected]>

* Fix

Signed-off-by: koushiro <[email protected]>

* Remove useless

Signed-off-by: koushiro <[email protected]>

* Fix migration

Signed-off-by: koushiro <[email protected]>

* Fix format

Signed-off-by: koushiro <[email protected]>

* Fix

Signed-off-by: koushiro <[email protected]>

* Fix migration

now we need to store the new version manually.

* Fix migration and Add migration test

Signed-off-by: koushiro <[email protected]>

* Fix

Signed-off-by: koushiro <[email protected]>

* Fix format

Signed-off-by: koushiro <[email protected]>

* Use new_test_ext

Signed-off-by: koushiro <[email protected]>

Co-authored-by: thiolliere <[email protected]>