[BUGFIX] Use correct PHP syntax in code example

Releases: master, 9.5
Resolves: #88591
Change-Id: I45588bfd8f1dd26debec6e06d6a3466a7458496a
Reviewed-on: https://review.typo3.org/c/Packages/TYPO3.CMS/+/61092


Reviewed-by: Oliver Klee <typo3-coding@oliverklee.de>
Reviewed-by: Guido Schmechel <guido.schmechel@brandung.de>
Reviewed-by: Daniel Goerz <daniel.goerz@posteo.de>
Tested-by: Oliver Klee <typo3-coding@oliverklee.de>
Tested-by: Guido Schmechel <guido.schmechel@brandung.de>
Tested-by: TYPO3com <noreply@typo3.com>
Tested-by: Daniel Goerz <daniel.goerz@posteo.de>

typo3/sysext/core/Documentation/Changelog/8.7/Deprecation-80000-InlineOverrideChildTca.rst

@@ -106,7 +106,7 @@ foreign_selector_fieldTcaOverride before and after transition to overrideChildTc
             'config' => [
                 'type' => 'inline',
                 'foreign_selector' => 'uid_local',
-                'overrideChildTca => [
+                'overrideChildTca' => [
                     'columns' => [
                         'uid_local' => [
                             'config' => [