Update symfony packages to v5 (major)

This MR contains the following updates:

Package	Type	Update	Change
symfony/console (source)	require	major	^4.4 -> ^5.0
symfony/process (source)	require	major	^4.4 -> ^5.0
symfony/yaml (source)	require	major	^4.4 -> ^5.0

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added renovate label

closed