Allow relaxing the Node.js runtime version requirement (opensearch-pr…

…oject#3402)

With this change, the `engines.node` of `package.json` need not be a fixed version; it can be a range using a subset of formats defined by `semver`.

A very limited subset of what [semver](https://github.com/npm/node-semver/blob/cb1ca1d5480a6c07c12ac31ba5f2071ed530c4ed/README.md#ranges) supports has been added; only a single comparator, composed of an operator and a version, is supported.

The supported operators are
 *   `>`    Greater than
 *   `>=`   Greater than or equal to
 *   `=`    Equal
 *   `~`    Tilde ranges: Allows patch changes if a minor version is specified but if only a major version is specified, it allows minor changes.
 *   `^`    Caret ranges: Allows patch and minor updates when major is non-zero (and we will never have that).

If no operator is specified, equality is assumed.

Signed-off-by: Miki <miki@amazon.com>
Signed-off-by: David Sinclair <david@sinclair.tech>

CHANGELOG.md

@@ -130,6 +130,7 @@ Inspired from [Keep a Changelog](https://keepachangelog.com/en/1.0.0/)
 - Upgrade `vega-lite` dependency to ^5.6.0 ([#3076](https://github.com/opensearch-project/OpenSearch-Dashboards/pull/3076))
 - Bumps `re2` and `supertest` ([3018](https://github.com/opensearch-project/OpenSearch-Dashboards/pull/3018))
 - Bump `vega-tooltip` version from ^0.24.2 to ^0.30.0 ([#3358](https://github.com/opensearch-project/OpenSearch-Dashboards/issues/3358))
+- Allow relaxing the Node.js runtime version requirement ([3402](https://github.com/opensearch-project/OpenSearch-Dashboards/pull/3402))
 
 ### 🪛 Refactoring