Backend: Accounts: Migrate primary key from int to uuid

[lnielsen]

We need to move the primary key on the user table from an integer to a random uuid.

Here's a review of what would need to be changed:

# Tables with FKs to users
- invenio_access: ActionUsersm, UserRole
- invenio_accounts: Login information, Session activity, User identity,
- invenio_communities: CommunityMembers
- invenio_oauth2server: Token, Client
- invenio_oauthclient: RemoteAccount,
- invenio_userprofiles: UserProfile

# JSONSchemas and mappings with user ids
requestevents
- creator
requests
- creator/receiver
rdmrecords
- owned_by, grants, links
communitymembers
- user_id
users

# Modules with imports from Flask-Login that needs to be checked
flask_security
invenio_access
invenio_accounts
invenio_admin
invenio_app
invenio_app_rdm
invenio_cache
invenio_communities
invenio_files_rest
invenio_i18n
invenio_logging (direct test dependency)
invenio_oauth2server
invenio_oauthclient
invenio_records_rest (direct test dependency)
invenio_records_ui
invenio_requests
invenio_userprofiles
sentry_sdk
sqlalchemy_continuum

# Code to review that might need to be updated to work with the strs instead of ints
./sqlalchemy_continuum/plugins/flask.py:39:        return current_user.id
./flask_security/core.py:221:        identity = Identity(current_user.id)
./flask_security/core.py:227:        identity.provides.add(UserNeed(current_user.id))
./invenio_userprofiles/forms.py:82:                    current_user.id == user_profile.user_id
./flask_security/core.py:221:        identity = Identity(current_user.id)
./flask_security/core.py:226:    if hasattr(current_user, 'id'):
./flask_security/core.py:227:        identity.provides.add(UserNeed(current_user.id))
./invenio_oauth2server/templates/invenio_oauth2server/authorize.html:22:                        client_name=client.name, client_user=client.user.nickname or client.user.email, current_user=current_user.nickname or current_user.email) }}</h3>
./invenio_oauth2server/templates/semantic-ui/invenio_oauth2server/authorize.html:23:      {{ _("Application '%(client_name)s' by '%(client_user)s' wants permission to access your '%(current_user)s' account.",
./invenio_oauth2server/templates/semantic-ui/invenio_oauth2server/authorize.html:26:          current_user=current_user.nickname or current_user.email,
./invenio_oauth2server/ext.py:56:        bind_cache_grant(app, oauth2, lambda: OAuthUserProxy(current_user))
./invenio_oauthclient/contrib/cern.py:352:    provides = set([UserNeed(current_user.email)] + [
./invenio_oauthclient/contrib/cern.py:453:    if not current_user.is_authenticated:

# Review of UserNeed
./invenio_records_resources/references/resolvers/users.py:29:        return [UserNeed(user_id)]
./invenio_communities/generators.py:232:            return [UserNeed(member.user_id)]
./flask_security/core.py:227:        identity.provides.add(UserNeed(current_user.id))
./invenio_records_permissions/__init__.py:64:            return [UserNeed(owner) for owner in record.get('owners', [])]
./invenio_records_permissions/generators.py:134:        return [UserNeed(owner) for owner in record.get('owners', [])]
./invenio_records_permissions/generators.py:222:            UserNeed(identity.get('id')) for identity in allowed_identities
./invenio_rdm_records/records/systemfields/access/grants.py:101:            need = UserNeed(self.subject.id)
./invenio_rdm_records/fixtures/tasks.py:34:    identity.provides.add(UserNeed(user_id))
./invenio_rdm_records/fixtures/tasks.py:54:    identity.provides.add(UserNeed(user_id))
./invenio_rdm_records/services/generators.py:103:            UserNeed(owner.owner_id) for owner in record.parent.access.owners
./invenio_access/models.py:131:        return UserNeed(self.user_id)
./invenio_access/utils.py:22:        identity.provides.add(UserNeed(user.id))
./invenio_access/permissions.py:107:        Permission(UserNeed('1'), RoleNeed('admin'))
./invenio_oauthclient/contrib/cern.py:352:    provides = set([UserNeed(current_user.email)] + [
./invenio_oauthclient/contrib/cern_openid.py:210:        [UserNeed(current_user.email)] + [RoleNeed(name) for name in roles]