[TASK] Properly set clear config flag in functional test

Field 'clear' in sys_template is a checkbox field:
1 = clear constants
2 = clear setup
3 = clear both constants & setup

The patch updates a functional test setup to
properly clear both constants and setup.

Change-Id: I45175bbeb571328715928d133ce83245608e208c
Resolves: #97800
Releases: main
Reviewed-on: https://review.typo3.org/c/Packages/TYPO3.CMS/+/74969


Tested-by: core-ci <typo3@b13.com>
Tested-by: Stefan Bürk <stefan@buerk.tech>
Tested-by: Benni Mack <benni@typo3.org>
Tested-by: Christian Kuhn <lolli@schwarzbu.ch>
Reviewed-by: Stefan Bürk <stefan@buerk.tech>
Reviewed-by: Benni Mack <benni@typo3.org>
Reviewed-by: Christian Kuhn <lolli@schwarzbu.ch>

typo3/sysext/fluid/Tests/Functional/ViewHelpers/Format/HtmlViewHelperTest.php

@@ -134,7 +134,7 @@ class HtmlViewHelperTest extends FunctionalTestCase
                 [
                     'pid' => 1,
                     'root' => 1,
-                    'clear' => 1,
+                    'clear' => 3,
                     'config' => <<<EOT
 constants.PROJECT = TYPO3
 constants.FOO = BAR