For arguments sake, try all three attributes

PHPUnit 10 fails with a warning about an incompatible XML config, exit code 1.
```
1) Test results may not be as expected because the XML configuration file did not pass validation:

  Line 24:
  - Element 'source', attribute 'ignoreSelfDeprecations': The attribute 'ignoreSelfDeprecations' is not allowed.
  - Element 'source', attribute 'ignoreDirectDeprecations': The attribute 'ignoreDirectDeprecations' is not allowed.
  - Element 'source', attribute 'ignoreIndirectDeprecations': The attribute 'ignoreIndirectDeprecations' is not allowed.
```

PHPUnit 11 throws PHPUnit deprecation notice about `CoversClass`, exit code 1.

Author: jrfnl

phpunit.xml.dist

@@ -21,7 +21,7 @@
         </testsuite>
     </testsuites>
 
-    <source ignoreIndirectDeprecations="true">
+    <source ignoreSelfDeprecations="true" ignoreDirectDeprecations="true" ignoreIndirectDeprecations="true">
         <include>
             <directory suffix=".php">./src/</directory>
         </include>