Try also removing the other case where --force is used

It was originally added by https://github.com/ruby/setup-ruby/pull/253,
in order to fix CI. However, now CI passes without it so I assume this
was fixed by rubyinstaller2.

Force actually bypasses dependency constraints so it's actually
installing the latest Bundler in a version of Ruby that's incompatible
with it.

bundler.js

@@ -137,14 +137,11 @@ export async function installBundler(bundlerVersionInput, rubygemsInputSet, lock
   }
 
   const gem = path.join(rubyPrefix, 'bin', 'gem')
-  // Workaround for https://github.com/rubygems/rubygems/issues/5245
-  // and for https://github.com/oracle/truffleruby/issues/2780
-  const force = ((platform.startsWith('windows-') && engine === 'ruby' && floatVersion >= 3.1) || (engine === 'truffleruby')) ? ['--force'] : []
 
   const versionParts = [...bundlerVersion.matchAll(/\d+/g)].length
   const bundlerVersionConstraint = versionParts >= 3 ? bundlerVersion : `~> ${bundlerVersion}.0`
 
-  await exec.exec(gem, ['install', 'bundler', ...force, '-v', bundlerVersionConstraint])
+  await exec.exec(gem, ['install', 'bundler', '-v', bundlerVersionConstraint])
 
   return bundlerVersion
 }

dist/index.js

@@ -151,14 +151,11 @@ async function installBundler(bundlerVersionInput, rubygemsInputSet, lockFile, p
   }
 
   const gem = path.join(rubyPrefix, 'bin', 'gem')
-  // Workaround for https://github.com/rubygems/rubygems/issues/5245
-  // and for https://github.com/oracle/truffleruby/issues/2780
-  const force = ((platform.startsWith('windows-') && engine === 'ruby' && floatVersion >= 3.1) || (engine === 'truffleruby')) ? ['--force'] : []
 
   const versionParts = [...bundlerVersion.matchAll(/\d+/g)].length
   const bundlerVersionConstraint = versionParts >= 3 ? bundlerVersion : `~> ${bundlerVersion}.0`
 
-  await exec.exec(gem, ['install', 'bundler', ...force, '-v', bundlerVersionConstraint])
+  await exec.exec(gem, ['install', 'bundler', '-v', bundlerVersionConstraint])
 
   return bundlerVersion
 }
@@ -71454,8 +71451,10 @@ async function rubygemsLatest(gem, platform, engine, rubyVersion) {
     const floatVersion = common.floatVersion(rubyVersion)
     if (common.isHeadVersion(rubyVersion)) {
       console.log('Ruby master builds use included RubyGems')
-    } else if (floatVersion >= 3.1) {
+    } else if (floatVersion >= 3.2) {
       await exec.exec(gem, ['update', '--system'])
+    } else if (floatVersion >= 3.1) {
+      await exec.exec(gem, ['update', '--system', '3.6.9'])
     } else if (floatVersion >= 3.0) {
       await exec.exec(gem, ['update', '--system', '3.5.23'])
     } else if (floatVersion >= 2.6) {

rubygems.js

@@ -39,8 +39,10 @@ async function rubygemsLatest(gem, platform, engine, rubyVersion) {
     const floatVersion = common.floatVersion(rubyVersion)
     if (common.isHeadVersion(rubyVersion)) {
       console.log('Ruby master builds use included RubyGems')
-    } else if (floatVersion >= 3.1) {
+    } else if (floatVersion >= 3.2) {
       await exec.exec(gem, ['update', '--system'])
+    } else if (floatVersion >= 3.1) {
+      await exec.exec(gem, ['update', '--system', '3.6.9'])
     } else if (floatVersion >= 3.0) {
       await exec.exec(gem, ['update', '--system', '3.5.23'])
     } else if (floatVersion >= 2.6) {