Update dependency doctrine/orm to v3.1.1

This MR contains the following updates:

Package	Type	Update	Change
doctrine/orm (source)	require	patch	3.1.0 -> 3.1.1

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Release Notes

doctrine/orm (doctrine/orm)

v3.1.1

Compare Source

Release Notes for 3.1.1

3.1.1

• Total issues resolved: 0
• Total pull requests resolved: 4
• Total contributors: 3

Bug

• 11387: Fixed proxy initialization for EnumReflectionProperty thanks to @​valkars
• 11370: Avoid another occurrence of ArrayAccess thanks to @​greg0ire
• 11368: Avoid array access thanks to @​greg0ire

Documentation

• 11383: Remove older versions from the docs thanks to @​SenseException

Changes from Lower Branches

• This release contains all changes of the 2.19.1 release.
• This release contains all changes of the 2.19.2 release.
• This release contains all changes of the 2.19.3 release.

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