Change version to 0.6.13 (#362)

* Change version to 0.6.13

* Change to checkout@v4

Change version to 0.6.11 (#356)

Merge pull request #353 from mbj/fix/alive-mutation

Fix alive mutation in op-asgn dispatch

Merge pull request #349 from mbj/upgrade/parser

Fix {begin,end}less {i,e}range flipflops

Merge pull request #347 from mbj/fix/arithmetic-csend

Fix binary csend

Merge pull request #336 from mbj/add/ruby-3.2

Add ruby 3.2

Merge pull request #312 from mbj/fix/heredoc-block

Fix heredoc block with arguments

Merge pull request #299 from mbj/add/3-1-syntax

Add 3.1 syntax support

Merge pull request #281 from mbj/fix/unary-operator-arguments

Fix unary operator with arguments

Merge pull request #245 from mbj/reduce/dependencies

Reduce dependencies