[GLUTEN-6016] Allow overflow when converting decimal to int like spark

[taiyang-li]

Changelog category (leave one):

• Backward Incompatible Change

Changelog entry (a user-readable short description of the changes that goes to CHANGELOG.md):

Allow overflow when converting decimal to int like spark

[baibaichen]

@taiyang-li Please move to current branch rebase_ch/20240616