feat: adds --flaky cli option

tests/.pest/snapshots/Visual/Help/visual_snapshot_of_help_command_output.snap

@@ -28,6 +28,7 @@
   --pull-request  Output to standard output tests with the given pull request number (alias for --pr)  
   --retry  Run non-passing tests first and stop execution upon first error or failure  
   --dirty ...... Only run tests that have uncommitted changes according to Git  
+  --flaky .................... Output to standard output tests marked as flaky  
   --all .................... Ignore test selection from XML configuration file  
   --list-suites ................................... List available test suites  
   --testsuite [name] ......... Only run tests from the specified test suite(s)  

tests/.snapshots/success.txt

@@ -1862,9 +1862,9 @@
    PASS  Tests\Visual\Help
   ✓ visual snapshot of help command output
 
-   WARN  Tests\Visual\JUnit
+   PASS  Tests\Visual\JUnit
   ✓ junit output
-  - junit with parallel → Not working yet
+  ✓ junit with parallel
 
    PASS  Tests\Visual\Parallel
   ✓ parallel
@@ -1903,4 +1903,4 @@
   ✓ pass with dataset with ('my-datas-set-value')
   ✓ within describe → pass with dataset with ('my-datas-set-value')
 
-  Tests:    2 deprecated, 4 warnings, 5 incomplete, 2 notices, 40 todos, 36 skipped, 1295 passed (2964 assertions)
+  Tests:    2 deprecated, 4 warnings, 5 incomplete, 2 notices, 40 todos, 35 skipped, 1296 passed (2977 assertions)

tests/Visual/JUnit.php

@@ -60,20 +60,17 @@ test('junit with parallel', function () use ($normalizedPath, $run) {
     expect($result['testsuite']['@attributes'])
         ->name->toBe('Tests\tests\SuccessOnly')
         ->file->toBe($normalizedPath('tests/.tests/SuccessOnly.php'))
-        ->tests->toBe('2')
-        ->assertions->toBe('2')
+        ->tests->toBe('1')
+        ->assertions->toBe('1')
         ->errors->toBe('0')
         ->failures->toBe('0')
         ->skipped->toBe('0');
 
-    expect($result['testsuite']['testcase'])
-        ->toHaveCount(2);
-
-    expect($result['testsuite']['testcase'][0]['@attributes'])
+    expect($result['testsuite']['testcase']['@attributes'])
         ->name->toBe('it can pass with comparison')
         ->file->toBe($normalizedPath('tests/.tests/SuccessOnly.php::it can pass with comparison'))
         ->class->toBe('Tests\tests\SuccessOnly')
         ->classname->toBe('Tests.tests.SuccessOnly')
         ->assertions->toBe('1')
         ->time->toStartWith('0.0');
-})->skip('Not working yet');
+});