[C++][Gandiva] Add support for LLVM 13

[asfimport]

Reporter: Kouhei Sutou / @kou
Assignee: Kouhei Sutou / @kou

Related issues:

• [CI][C++] Support LLVM 13 (is duplicated by)

PRs and other links:

• GitHub Pull Request #11374

_{Note: This issue was originally created as ARROW-14265. Please see the migration documentation for further details.}