Log Message:
Update to alex-3.2.5

Changes in 3.2.5:
* Build fixes for GHC 8.8.x

Changes in 3.2.4:
* Remove dependency on QuickCheck
* Change the way that bootstrapping is done: see README.md for build instructions

Changes in 3.2.3:
* fix issue when using cpphs (#116)

Changes in 3.2.2:
* Manage line length in generated files [GH-84]
* Fix issue when identifier with multiple single quotes, e.g. foo''
  was used
* Allow omitting spaces around = in macro definitions
* Include pre-generated Parser.hs and Scan.hs in the Hackage upload,
  to make bootstrapping easier.

Changes in 3.2.1:
* Fix build problem with GHC; add new test tokens_scan_user.x

Changes in 3.2.0:
* Allow the token type and productions to be overloaded, and add new
  directives: %token, %typeclass, %action. See "Type Signatures and
  Typeclasses" in the manual.
* Some small space leak fixes