[SECURITY] Update rx_shariff to 10.3.3

* Update TYPO3 CMS to 8.7.18 incl. dependencies
4 jobs for develop in 6 minutes
Status Job ID Name Coverage
  Test
passed #9182
test:php

00:00:17

 
  Build
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build

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  Layout
passed #9184
layout

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  Deploy
passed #9185
deploy-develop

00:01:22