PR #10635 introduces rescue from ArgumentError thrown by `Base64.strict_decode64`.

This broke natural order of things for `StaleSessionCheck#stale_session_check!` which tried auto_loading a class based on `ArgumentError` message , and later retrying the `Marshal#load` of class, successfully allowing auto_loading.

  This PR tries to fix this behavior by forwarding `ArgumentError` 's not raised  by `Base64.strict_decode64` , as is, ahead to `StaleSessionCheck#stale_session_check!`
Merge pull request #13229 from vipulnsward/fix-10635-tests

Fix test-error introduced by #10635.
make sure cached table name is a string. fixes #12582
More liberal builder dependency

Allowing us to get 3.2.x versions if needed.
remove the nil check from set_inverse_instance

methods that call set_inverse_instance with a record will not have to
pay the cost of a nil check on every call
remove nil check

calling replace_keys could possibly do a nil check twice, this commit
reduces it to once.
remove more nil checks
Add config/tokens.yml template
Remove secret_token.rb
Load secret_key_base from tokens.yml, fallback to config.secret_key_base
Replace config.secret_key_base with secrets.secret_key_base in test
Add test for custom tokens stored in config/tokens.yml
Added :nodoc: for `attribute_changed?` and `attribute_was` [ci skip]

These methods were made "public" in 47617ecd so that `method_missing`
can invoke them without going through `send`, but they aren't meant
for consumption from outside of Rails.
Merge pull request #13300 from chancancode/add_nodoc_am_dirty_methods

Added :nodoc: for `attribute_changed?` and `attribute_was` [ci skip]
Merge pull request #13255 from strzalek/bump-builder

Bump up builder
copy-edits 68abbac [ci skip]

* Rewording to avoid "you"s.

* Suggest as first natural alternative to refactor the block
  to evaluate to the returned value.

* Removes the quotes around "filters", since that is a common
  work in our jargon.
docs guidelines: recommends wording in a way that avoids "you"s and "your"s
Remove delegation test.

This test was removed, since Relation will not delegate class
methods to Array.
Add changelog
Use a whitelist to delegate methods to array