Fix deprecation warning with latest jruby/bundler (#17766) (#17767)

This commit updates the pluginmanager to not use a deprecated argument.

See ruby/rubygems@d1963bf

(cherry picked from commit 443e527)

Co-authored-by: Cas Donoghue <[email protected]>

Author: mergify[bot]

lib/pluginmanager/bundler/logstash_injector.rb

@@ -96,7 +96,7 @@ def inject(gemfile_path, lockfile_path, dependencies)
             definition.remove_platform(specific_platform)
           end
           definition.add_platform(Gem::Platform.new('java'))
-          definition.lock(lockfile_path)
+          definition.lock
           gemfile.save
         rescue => e
           # the error should be handled elsewhere but we need to get the original file if we dont

lib/pluginmanager/bundler/logstash_uninstall.rb

@@ -62,7 +62,7 @@ def uninstall!(gems_to_remove)
         definition = builder.to_definition(lockfile_path, {})
 
         # lock the definition and save our modified gemfile
-        definition.lock(lockfile_path)
+        definition.lock
         gemfile.save
 
         gems_to_remove.each do |gem_name|