Fix Rails/Savebang rubocop related failures

- Update method name 'update' to 'call'
- Fix test with weak password that wasn't previously being persisted correctly
- Rescue from ActiveRecord::RecordInvalid to keep user flow consistent after adding ! to `save` in 'suspend' and 'unsuspend' methods

app/controllers/suspensions_controller.rb

@@ -2,6 +2,8 @@ class SuspensionsController < ApplicationController
   before_action :authenticate_user!, :load_and_authorize_user
   respond_to :html
 
+  rescue_from ActiveRecord::RecordInvalid, with: :render_edit
+
   def update
     if params[:user][:suspended] == "1"
       succeeded = @user.suspend(params[:user][:reason_for_suspension])
@@ -20,8 +22,7 @@ def update
 
       redirect_to @user.api_user? ? edit_api_user_path(@user) : edit_user_path(@user)
     else
-      flash[:alert] = "Failed"
-      render :edit
+      render_edit
     end
   end
 
@@ -31,4 +32,9 @@ def load_and_authorize_user
     @user = User.find(params[:id])
     authorize @user, :suspension?
   end
+
+  def render_edit
+    flash[:alert] = "Failed"
+    render :edit
+  end
 end