Log Message:
security/ruby-rex-powershell: update to 0.1.93

0.1.91 (2021-04-23)

* Land #30, Implement the rc4 wrapper

0.1.92 (2021-07-09)

* Land #31, add method to obfuscate string literals
* Land #32, fix unit tests

0.1.93 (2021-07-19)

* Land #33, Add github actions for tests
* Land #35, Add W^X powershell payload templates