Feature: exec-args support for print-config & print-test-plan

[cap10morgan]

This adds support for the following exec-args when using the Clojure CLI exec-fn / -X invocation method:

• :print-config true
• :print-test-plan true

Fixes #401

[codecov[bot]]

Codecov Report

Patch coverage has no change and project coverage change: -0.19 :warning:

Comparison is base (4bdea89) 75.26% compared to head (12de5b4) 75.08%.

Additional details and impacted files

```diff @@ Coverage Diff @@ ## main #407 +/- ## ========================================== - Coverage 75.26% 75.08% -0.19% ========================================== Files 52 52 Lines 2790 2797 +7 Branches 267 267 ========================================== Hits 2100 2100 - Misses 523 530 +7 Partials 167 167 ``` | Flag | Coverage Δ | | |---|---|---| | integration | `56.41% <0.00%> (-0.15%)` | :arrow_down: | | unit | `69.39% <0.00%> (-0.18%)` | :arrow_down: | Flags with carried forward coverage won't be shown. [Click here](https://docs.codecov.io/docs/carryforward-flags?utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=None#carryforward-flags-in-the-pull-request-comment) to find out more. | [Impacted Files](https://codecov.io/gh/lambdaisland/kaocha/pull/407?src=pr&el=tree&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=None) | Coverage Δ | | |---|---|---| | [src/kaocha/runner.clj](https://codecov.io/gh/lambdaisland/kaocha/pull/407?src=pr&el=tree&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=None#diff-c3JjL2thb2NoYS9ydW5uZXIuY2xq) | `45.00% <0.00%> (-2.37%)` | :arrow_down: | Help us with your feedback. Take ten seconds to tell us [how you rate us](https://about.codecov.io/nps?utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=None). Have a feature suggestion? [Share it here.](https://app.codecov.io/gh/feedback/?utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=None)

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[plexus]

Thank you!

[plexus]

Released in v1.82.1306

[lambdaisland/kaocha "1.82.1306"]                 ;; deps.edn
{lambdaisland/kaocha {:mvn/version "1.82.1306"}}  ;; project.clj