Issue Running on Ruby 3.4

[sshaw]

Using Ruby 3.4:

Concurrent Ruby Issues

Must be locked to 1.3.4 to avoid uninitialized constant ActiveSupport::LoggerThreadSafeLevel::Logger (NameError) error: https://stackoverflow.com/questions/79360526/uninitialized-constant-activesupportloggerthreadsafelevellogger-nameerror

base64

Removed from Ruby core as of 3.4 (?)

bigdecimal

Removed from Ruby core as of 3 (?)