Fix test dependencies

[mishina2228]

Running the test with only test/env_test.rb or test/util_test.rb specified results in errors.
This PR addresses these issues.

• test/env_test.rb

  • Before

  $ PATTERN=test/env_test.rb be rake test 
  Loaded suite /home/owner/.rbenv/versions/3.0.2/lib/ruby/gems/3.0.0/gems/rake-13.0.6/lib/rake/rake_test_loader
  Started
  E
  ========================================================================================================================================================================
  Error: test_daemonizes_when_background_is_true(Env):
    NameError: uninitialized constant Resque::Scheduler::Env
    Did you mean?  ENV
  /home/owner/git-repos/resque-scheduler/test/env_test.rb:7:in `new_env'
  /home/owner/git-repos/resque-scheduler/test/env_test.rb:12:in `block (2 levels) in <top (required)>'
  
  ...(truncated)
  
  Finished in 0.017296834 seconds.
  ------------------------------------------------------------------------------------------------------------------------------------------------------------------------
  6 tests, 0 assertions, 0 failures, 6 errors, 0 pendings, 0 omissions, 0 notifications
  0% passed
  ------------------------------------------------------------------------------------------------------------------------------------------------------------------------
  346.88 tests/s, 0.00 assertions/s
  

  • After

  $ PATTERN=test/env_test.rb be rake test 
  Loaded suite /home/owner/.rbenv/versions/3.0.2/lib/ruby/gems/3.0.0/gems/rake-13.0.6/lib/rake/rake_test_loader
  Started
  ......
  Finished in 0.002148279 seconds.
  ------------------------------------------------------------------------------------------------------------------------------------------------------------------------
  6 tests, 8 assertions, 0 failures, 0 errors, 0 pendings, 0 omissions, 0 notifications
  100% passed
  ------------------------------------------------------------------------------------------------------------------------------------------------------------------------
  2792.93 tests/s, 3723.91 assertions/s
  

• test/util_test.rb

  • Before

  $ PATTERN=test/util_test.rb be rake test 
  /home/owner/git-repos/resque-scheduler/test/util_test.rb:4:in `<top (required)>': undefined method `context' for main:Object (NoMethodError)
          from /home/owner/.rbenv/versions/3.0.2/lib/ruby/gems/3.0.0/gems/rake-13.0.6/lib/rake/rake_test_loader.rb:21:in `require'
          from /home/owner/.rbenv/versions/3.0.2/lib/ruby/gems/3.0.0/gems/rake-13.0.6/lib/rake/rake_test_loader.rb:21:in `block in <main>'
          from /home/owner/.rbenv/versions/3.0.2/lib/ruby/gems/3.0.0/gems/rake-13.0.6/lib/rake/rake_test_loader.rb:6:in `select'
          from /home/owner/.rbenv/versions/3.0.2/lib/ruby/gems/3.0.0/gems/rake-13.0.6/lib/rake/rake_test_loader.rb:6:in `<main>'
  

  • After

  $ PATTERN=test/util_test.rb be rake test 
  Loaded suite /home/owner/.rbenv/versions/3.0.2/lib/ruby/gems/3.0.0/gems/rake-13.0.6/lib/rake/rake_test_loader
  Started
  ..
  Finished in 0.000772694 seconds.
  ------------------------------------------------------------------------------------------------------------------------------------------------------------------------
  2 tests, 2 assertions, 0 failures, 0 errors, 0 pendings, 0 omissions, 0 notifications
  100% passed
  ------------------------------------------------------------------------------------------------------------------------------------------------------------------------
  2588.35 tests/s, 2588.35 assertions/s