Ignore some PHPStan "no effect" errors in tests

PHPStan errors like these:

Call to method Ramsey\Uuid\Builder\FallbackBuilder::build() on a separate line
has no effect.

can be safely ignored here. The lack of effect is intentional as we are testing
exceptions.

tests/phpstan-tests.neon

@@ -27,3 +27,12 @@ parameters:
             message: "#^Function uuid_parse\\(\\) has parameter \\$uuid with no typehint specified\\.$#"
             count: 1
             path: phpstan-bootstrap.php
+        -
+            message: "#^Call to method Ramsey\\\\Uuid\\\\.+ on a separate line has no effect\\.$#"
+            paths:
+                - Builder/*Test.php
+                - Converter/*Test.php
+                - Generator/*Test.php
+                - Guid/*Test.php
+                - Nonstandard/*Test.php
+                - Rfc4122/*Test.php