[C++][Gandiva] Deal with functions that have lock contention

The Gandiva Cache code deal with expressions that contains RE2 patterns in a different way than the other expressions, as one can see in this line in code:

But it is not dealing with all available functions with RE2 patterns, it is missing the following ones:
- ILIKE
- REGEXP_REPLACE

**Reporter**: [Anthony Louis Gotlib Ferreira](https://issues.apache.org/jira/browse/ARROW-15391) / @anthonylouisbsb
#### PRs and other links:
- [GitHub Pull Request #12209](https://github.com/apache/arrow/pull/12209)

_{**Note**: *This issue was originally created as [ARROW-15391](https://issues.apache.org/jira/browse/ARROW-15391). Please see the [migration documentation](https://github.com/apache/arrow/issues/14542) for further details.*}

Start in cpp/src/gandiva/expression_cache_key.h at the linked logic and compare how RE2-pattern functions are handled. Review pull request #12209, then verify that ILIKE and REGEXP_REPLACE receive the same cache treatment as the other listed expressions without lock contention.

Written by the indexing model from the issue text.