Update dependencies and version constraints

[christiaan]

Loosened the constraint for php-translation/symfony-bundle as the caret version range handles 0.x.x specially.

[emri99]

First, Thanks for your contribution ;)

I understand your meaning about caret version range, however removing PHP 5.6, 7.0, 7.1 versions is a bit more problematic for our usage as we need to keep compatibility for our legacy projects using theses versions.

What was the reason for removing PHP < 7.2 ?
Did you experiment problems when just changing caret version ? (I haven't test it yet)

[christiaan]

What was the reason for removing PHP < 7.2 ?
Did you experiment problems when just changing caret version ? (I haven't test it yet)

Mainly because the dependencies of this package also dropped support. Trying to keep < 7.2 supported would mean that newer dependencies are not supported.

Supporting 7.2 is even quite liberal seeing as support for 7.2 is due to expire 30 nov.

php-translation/extractor requires minimal version 7.2,
php-translation/symfony-bundle requires minimal 7.1

What about releasing this change as a new Major version? The current version works fine for older versions of packages that also support <7.2.

[emri99]

I'll do my best to valid your PR and release a new major version this week-end ;)

[emri99]

I release v2 version to keep v1 for stable version on PHP < 7.2.
Thanks again ;)

[christiaan]

Thank you for creating this and still maintaining it! 👍