MONGOID-5027 Rails 6.1 support (#4938)

* Update mongoid.gemspec

Hi,
I use rails 6.1 and mongoid and i get error when i run bundle. So i update the dependency to activemodel <= 6.1 .

* allow everything less than 6.2

* test on Rails 6.1 and 6.0

* Update halted_callback_hook to take the name argument added in Rails 6.1.

See Rails commit 06dd162fb3ae67f202a0a59da1ce94317d0a3e22

* MONGOID-4731 use Errors#copy! to properly copy errors for Rails 6.1 (and also earlier versions)

* update compat tables for Rails 6.1

* bundle exec rake

Co-authored-by: Francel <[email protected]>
Co-authored-by: Oleg Pudeyev <[email protected]>

Author: 3 people

source/tutorials/mongoid-installation.txt

@@ -227,48 +227,63 @@ are supported by Mongoid.
    :class: compatibility-large no-padding
 
    * - Mongoid
+     - Rails 6.1
      - Rails 6.0
      - Rails 5.2
      - Rails 5.1
      - Rails 5.0
      - Rails 4.2
 
+   * - 7.3
+     - |checkmark|
+     - |checkmark|
+     - |checkmark|
+     - |checkmark|
+     -
+     -
+
    * - 7.2
+     - |checkmark| [#rails-6.1]_
      - |checkmark|
      - |checkmark|
      - |checkmark|
      -
      -
 
    * - 7.1
+     - |checkmark| [#rails-6.1]_
      - |checkmark|
      - |checkmark|
      - |checkmark|
      -
      -
 
    * - 7.0
+     - |checkmark| [#rails-6.1]_
      - |checkmark| [#rails-6]_
      - |checkmark|
      - |checkmark|
      -
      -
 
    * - 6.4
+     -
      -
      - |checkmark|
      - |checkmark|
      -
      -
 
    * - 6.3
+     -
      -
      - |checkmark|
      - |checkmark|
      -
      -
 
    * - 6.2
+     -
      -
      - |checkmark|
      - |checkmark|
@@ -305,4 +320,7 @@ are supported by Mongoid.
 
 .. [#rails-6] Rails 6.0 requires Mongoid 7.0.5 or later.
 
+.. [#rails-6.1] Rails 6.1 requires Mongoid 7.0.12, 7.1.7 or 7.2.1 in the
+  respective 7.0, 7.1 and 7.2 stable branches.
+
 .. include:: /includes/unicode-checkmark.rst