Add JRuby 9.2.20.0

CONTRIBUTING.md

@@ -19,3 +19,7 @@ It is recommended to add this as a `git` `pre-commit` hook:
 ```bash
 $ cp pre-commit .git/hooks/pre-commit
 ```
+
+## Adding a new Ruby version
+
+Add the new version in `ruby-builder-versions.js` and update the README.

dist/index.js

@@ -58781,7 +58781,7 @@ function getVersions(platform) {
     ],
     "jruby": [
       "9.1.17.0",
-      "9.2.9.0", "9.2.10.0", "9.2.11.0", "9.2.11.1", "9.2.12.0", "9.2.13.0", "9.2.14.0", "9.2.15.0", "9.2.16.0", "9.2.17.0", "9.2.18.0", "9.2.19.0",
+      "9.2.9.0", "9.2.10.0", "9.2.11.0", "9.2.11.1", "9.2.12.0", "9.2.13.0", "9.2.14.0", "9.2.15.0", "9.2.16.0", "9.2.17.0", "9.2.18.0", "9.2.19.0", "9.2.20.0",
       "9.3.0.0", "9.3.1.0",
       "head"
     ],

ruby-builder-versions.js

@@ -15,7 +15,7 @@ export function getVersions(platform) {
     ],
     "jruby": [
       "9.1.17.0",
-      "9.2.9.0", "9.2.10.0", "9.2.11.0", "9.2.11.1", "9.2.12.0", "9.2.13.0", "9.2.14.0", "9.2.15.0", "9.2.16.0", "9.2.17.0", "9.2.18.0", "9.2.19.0",
+      "9.2.9.0", "9.2.10.0", "9.2.11.0", "9.2.11.1", "9.2.12.0", "9.2.13.0", "9.2.14.0", "9.2.15.0", "9.2.16.0", "9.2.17.0", "9.2.18.0", "9.2.19.0", "9.2.20.0",
       "9.3.0.0", "9.3.1.0",
       "head"
     ],