workaround jruby#7799 by updating rubygems for JRuby 9.2.x (#2246)

Co-authored-by: Mislav Marohnić <[email protected]>

Author: jsvd

bin/ruby-build

@@ -747,6 +747,11 @@ build_package_jruby() {
 
 install_jruby_launcher() {
   cd "${PREFIX_PATH}/bin"
+  # workaround for https://github.com/jruby/jruby/issues/7799
+  local jruby_version
+  jruby_version="$(./ruby -e 'puts JRUBY_VERSION' 2>/dev/null)"
+  [[ $jruby_version != "9.2."* ]] ||
+    ./ruby gem update -q --silent --system 3.3.26 --no-document --no-post-install-message >&4 2>&1
   { ./ruby gem install jruby-launcher
   } >&4 2>&1
 }

test/build.bats

@@ -589,6 +589,7 @@ DEF
   assert_success
 
   assert_build_log <<OUT
+jruby -e puts JRUBY_VERSION
 jruby gem install jruby-launcher
 OUT