Print failed test specs

[stan-is-hate]

This PR adds a reporter that prints failed test symbols (including any parametrize/matrix specs) to stdout, as well as generating a test suite yaml file.

Sample output:

====================================================================================================================================================================================================================================================================================================================================================================
FAILED TEST SUITE
Test suite to rerun failed tests: /Users/stanislav.vodetskyi/github/ducktape/results/2022-04-22--027/rerun-failed.yml
====================================================================================================================================================================================================================================================================================================================================================================
FAILED TEST SYMBOLS
Pass the test symbols below to your ducktape run
'/Users/stanislav.vodetskyi/github/ducktape/systests/cluster/test_remote_account.py::FailingTest.failing_test' '/Users/stanislav.vodetskyi/github/ducktape/systests/cluster/test_remote_account.py::FailingTest.matrix_test@{"string_param":"fail-second","int_param":-30}' '/Users/stanislav.vodetskyi/github/ducktape/systests/cluster/test_remote_account.py::FailingTest.matrix_test@{"string_param":"fail-second","int_param":10}' '/Users/stanislav.vodetskyi/github/ducktape/systests/cluster/test_remote_account.py::FailingTest.matrix_test@{"string_param":"fail-second","int_param":20}' '/Users/stanislav.vodetskyi/github/ducktape/systests/cluster/test_remote_account.py::FailingTest.matrix_test@{"string_param":"fail-third","int_param":-30}' '/Users/stanislav.vodetskyi/github/ducktape/systests/cluster/test_remote_account.py::FailingTest.matrix_test@{"string_param":"fail-third","int_param":10}' '/Users/stanislav.vodetskyi/github/ducktape/systests/cluster/test_remote_account.py::FailingTest.matrix_test@{"string_param":"fail-third","int_param":20}' '/Users/stanislav.vodetskyi/github/ducktape/systests/cluster/test_remote_account.py::FailingTest.matrix_test@{"string_param":"success-first","int_param":-30}' '/Users/stanislav.vodetskyi/github/ducktape/systests/cluster/test_remote_account.py::FailingTest.parametrized_test@{"int_param":[10,-10]}' '/Users/stanislav.vodetskyi/github/ducktape/systests/cluster/test_remote_account.py::FailingTest.parametrized_test@{"string_param":["success-first","fail-second"]}'

You can then either do ducktape results/latest/rerun-failed.yml or copy the output from stdout and paste it directly as a ducktape argument:

ducktape '/Users/stanislav.vodetskyi/github/ducktape/systests/cluster/test_remote_account.py::FailingTest.failing_test' '/Users/stanislav.vodetskyi/github/ducktape/systests/cluster/test_remote_account.py::FailingTest.matrix_test@{"string_param":"fail-second","int_param":-30}' '/Users/stanislav.vodetskyi/github/ducktape/systests/cluster/test_remote_account.py::FailingTest.matrix_test@{"string_param":"fail-second","int_param":10}' '/Users/stanislav.vodetskyi/github/ducktape/systests/cluster/test_remote_account.py::FailingTest.matrix_test@{"string_param":"fail-second","int_param":20}' '/Users/stanislav.vodetskyi/github/ducktape/systests/cluster/test_remote_account.py::FailingTest.matrix_test@{"string_param":"fail-third","int_param":-30}' '/Users/stanislav.vodetskyi/github/ducktape/systests/cluster/test_remote_account.py::FailingTest.matrix_test@{"string_param":"fail-third","int_param":10}' '/Users/stanislav.vodetskyi/github/ducktape/systests/cluster/test_remote_account.py::FailingTest.matrix_test@{"string_param":"fail-third","int_param":20}' '/Users/stanislav.vodetskyi/github/ducktape/systests/cluster/test_remote_account.py::FailingTest.matrix_test@{"string_param":"success-first","int_param":-30}' '/Users/stanislav.vodetskyi/github/ducktape/systests/cluster/test_remote_account.py::FailingTest.parametrized_test@{"int_param":[10,-10]}' '/Users/stanislav.vodetskyi/github/ducktape/systests/cluster/test_remote_account.py::FailingTest.parametrized_test@{"string_param":["success-first","fail-second"]}'

While not as powerful as a deflake feature by @imcdo , this one allows you to edit which ones you want to rerun prior to rerunning. Yet another option for debugging flakiness :)

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