Flow bugfix releases: 5.3.10, 6.0.7 & 6.1.1

[kdambekalns (Karsten Dambekalns)]

I tagged bugfix releases for Flow. They fix these tiny issues (across all releases), that are most probably not really relevant to you:

• BUGFIX: Remove fragment/query in setBaseUri()
• TASK: Fix some psalm complaints

Note that Flow 5.3 and up are compatible with PHP 7.4 by now

The released versions are:

• Flow - 5.3.10 ChangeLog
• Flow - 6.0.7 ChangeLog
• Flow - 6.1.1 ChangeLog

Thanks to those who contributed!