Merge branch '527-update-t3o_membership-to-3-0-3-and-add-root-req-for-dbal-2-10-3' into 'develop'

Resolve "update t3o_membership to 3.0.3 and add root req for DBAL 2.10.3"

Closes #527

See merge request t3o/typo3.org!397
7 jobs for 521-enable-multiple-news-authors in 5 minutes and 27 seconds (queued for 3 seconds)
Status Job ID Name Coverage
  Maintenance
manual #24910
allowed to fail manual
Get dump for local environment
 
  Test
passed #24913
test:composer

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passed #24912
test:php

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passed #24911
test:typoscript

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  Build
passed #24914
build

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  Layout
passed #24915
layout

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  Badges
passed #24916
Create Badge

00:00:18