fix(permissions_v2): add membership fields migration (#9199)

# Which Problems Are Solved

Memberships did not have a fields table fill migration.

# How the Problems Are Solved

Add filling of membership fields to the repeatable steps.

# Additional Changes

- Use the same repeatable step for multiple fill fields handlers.
- Fix an error for PostgreSQL 15 where a subquery in a `FROM` clause
needs an alias ing the `permitted_orgs` function.

# Additional Context

- Part of https://github.com/zitadel/zitadel/issues/9188
- Introduced in https://github.com/zitadel/zitadel/pull/9152

internal/query/projection/projection.go

@@ -85,6 +85,7 @@ var (
 	ProjectGrantFields      *handler.FieldHandler
 	OrgDomainVerifiedFields *handler.FieldHandler
 	InstanceDomainFields    *handler.FieldHandler
+	MembershipFields        *handler.FieldHandler
 )
 
 type projection interface {
@@ -174,6 +175,7 @@ func Create(ctx context.Context, sqlClient *database.DB, es handler.EventStore,
 	ProjectGrantFields = newFillProjectGrantFields(applyCustomConfig(projectionConfig, config.Customizations[fieldsProjectGrant]))
 	OrgDomainVerifiedFields = newFillOrgDomainVerifiedFields(applyCustomConfig(projectionConfig, config.Customizations[fieldsOrgDomainVerified]))
 	InstanceDomainFields = newFillInstanceDomainFields(applyCustomConfig(projectionConfig, config.Customizations[fieldsInstanceDomain]))
+	MembershipFields = newFillMembershipFields(applyCustomConfig(projectionConfig, config.Customizations[fieldsMemberships]))
 
 	newProjectionsList()
 	return nil