upgrade doctrine/orm dependecy version

[HecFranco]

[Wimble84]

Hi !

Just adding doctrine/orm 3.0 version as allowed is not enough

As you can see in my ticket #104, using with 3.0 give errors.

Before doctrine/orm and doctrine/lexer 3.0, tokens are stored directly as constants. But now (in 3.0) tokens are stored in TokenType Enum

See PR #97

[Hikariii]

Superseeded by https://github.com/ScientaNL/DoctrineJsonFunctions/pull/105

[Hikariii]

Release 5.5.0 supports orm 3