Bump rake from 0.9.2.2 to 12.3.3 in /.vim/bundle/splitjoin.vim

Bumps [rake](https://github.com/ruby/rake) from 0.9.2.2 to 12.3.3.
- [Release notes](https://github.com/ruby/rake/releases)
- [Changelog](https://github.com/ruby/rake/blob/master/History.rdoc)
- [Commits](ruby/rake@v0.9.2.2...v12.3.3)

Signed-off-by: dependabot[bot] <[email protected]>

Author: dependabot[bot]

.vim/bundle/splitjoin.vim/Gemfile.lock

@@ -8,7 +8,7 @@ GEM
       coderay (~> 1.0.5)
       method_source (~> 0.7)
       slop (>= 2.4.4, < 3)
-    rake (0.9.2.2)
+    rake (12.3.3)
     rspec (2.10.0)
       rspec-core (~> 2.10.0)
       rspec-expectations (~> 2.10.0)