Upgrade bundle dependencies for doc build

[yaooqinn]

On my Mac M2, I failed to gen the docs via bundle exec jekyll build

/Users/hzyaoqin/spark-website/.local_ruby_bundle/ruby/2.6.0/gems/ffi-1.14.2/lib/ffi/library.rb:275: [BUG] Bus Error at 0x00000001025b4000
ruby 2.6.10p210 (2022-04-12 revision 67958) [universal.arm64e-darwin23]

-- Crash Report log information --------------------------------------------
   See Crash Report log file under the one of following:
     * ~/Library/Logs/DiagnosticReports
     * /Library/Logs/DiagnosticReports
   for more details.
Don't forget to include the above Crash Report log file in bug reports.

-- Control frame information -----------------------------------------------

After bundle update, it's done

Configuration file: /Users/hzyaoqin/spark-website/_config.yml
            Source: /Users/hzyaoqin/spark-website
       Destination: /Users/hzyaoqin/spark-website/site
 Incremental build: disabled. Enable with --incremental
      Generating...
                    done in 3.648 seconds.

[yaooqinn]

Thank you @srowen, merged to asf-site