fix quoting non-strings

Closes #13444
Merge pull request #13451 from dmathieu/quoting_non_strings

Fix typecasting array of integers
CHANGELOG entry for #13451. [ci skip]
Add missing av/railtie require
Merge pull request #13457 from strzalek/add-missing-av-railtie

Add missing av/railtie require
added test cases for Resolver#connection_url_to_hash
Merge pull request #13446 from kuldeepaggarwal/resolver-test-cases

Resolver test cases
On destroying do not touch destroyed belongs to association.

Fixes: #13445