* Update method names.
* Sort shuffled tests by names.

This reverts commit 980f61935f6e8331e0908dc963e60fb727ab4d8c, which
seems no longer needed.

The test fails randomly for unknown reason.

https://github.com/ruby/ruby/actions/runs/14121674932/job/39562945096?pr=12993
```
    1) Error:
  TestParallel::TestParallel#test_retry_workers:
  Test::Unit::ProxyError: execution expired (start: 2025-03-28 04:04:10 +0000, end: 2025-03-28 04:05:50 +0000)
      /home/runner/work/ruby/ruby/src/tool/test/testunit/test_parallel.rb:16:in 'TestParallel.timeout'
      /home/runner/work/ruby/ruby/src/tool/test/testunit/test_parallel.rb:225:in 'TestParallel::TestParallel#test_retry_workers'
```

Maybe the workers do not respond "quit" request.

We no longer use the retry mechanism, so just remove the test.

Currently, the following tests are flaky and failing intermittently, so I'm going to increase the timeout to improve stability.

```  
    1) Failure:
  TestParallel::TestParallel#test_hungup [/Users/runner/work/ruby/ruby/src/tool/lib/zombie_hunter.rb:6]:
  Expected [[42009, #<Process::Status: pid 42009 SIGKILL (signal 9)>]] to be empty.
  
    2) Error:
  TestParallel::TestParallel#test_hungup:
  Test::Unit::ProxyError: execution expired
      /Users/runner/work/ruby/ruby/src/lib/timeout.rb:40:in 'Timeout::Error.handle_timeout'
      /Users/runner/work/ruby/ruby/src/lib/timeout.rb:194:in 'Timeout.timeout'
      /Users/runner/work/ruby/ruby/src/tool/test/testunit/test_parallel.rb:210:in 'TestParallel::TestParallel#test_hungup'

```
https://github.com/ruby/ruby/actions/runs/13560087551/job/37901506230#step:14:105

```
    1) Error:
  TestParallel::TestParallel#test_retry_workers:
  Test::Unit::ProxyError: execution expired
      /Users/runner/work/ruby/ruby/src/lib/timeout.rb:40:in 'Timeout::Error.handle_timeout'
      /Users/runner/work/ruby/ruby/src/lib/timeout.rb:194:in 'Timeout.timeout'
      /Users/runner/work/ruby/ruby/src/tool/test/testunit/test_parallel.rb:217:in 'TestParallel::TestParallel#test_retry_workers'
```
https://github.com/ruby/ruby/actions/runs/13559151505/job/37899041580#step:14:106

[Misc #20661] Stop retrying tests in make test-all command by default

Similar to `Test::Unit::assert_raise`, but allows sub classes too.