Symfony 5

[rossjcooper]

• Updated console commands to support Symfony 5
• Updated composer requirements to support PHP 8

[cs-alok-agarwal]

@rossjcooper Can we get this merge in 5.0.4 version please.
Else the command is not working.

[r3hp1c]

Copied pull request here: DoctrineEncryptBundle#4

Please see these comments:

• Realllow usage of php 7.2+, CI using github actions, demoprojects and other improvements #65 (comment)
• Realllow usage of php 7.2+, CI using github actions, demoprojects and other improvements #65 (comment)

The new package that I hope will be maintained by more than 1 person