Support for symfony 6

[GeoDpto]

Q	A
Bug fix?	no
New feature?	yes
BC breaks?	no
Deprecations?	no
Related tickets
Documentation
License	MIT

What's in this PR?

Support for symfony 6.

[dbu]

thanks!

i realized that the CI no longer worked. i fixed it in the master branch - can you please rebase and add an entry in the .github/workflow/tests.yml for the new symfony version?

[dbu]

weird, the build succeeded with the old symfony constraint: https://github.com/php-http/stopwatch-plugin/actions/runs/1543787287

oh wait, i missed to actually apply the constraint 🙈 - can you rebase on master again please? after that, the symfony 5 build should no longer fail, i think.

[GeoDpto]

phpspec/phpspec package is not compatible with SF 6 :(

We need to wait while the package will update to the new version.
phpspec/phpspec#1402

[dbu]

i fear you are right. lets hope they can release an updated version soon. my guess is that we would not have any issues in this plugin, but i'd rather not merge without knowing.

[ruudk]

What about removing PHPSpec and just use a good old PHPUnit test?

I mean, look at this small spec test: https://github.com/php-http/stopwatch-plugin/blob/master/spec/StopwatchPluginSpec.php
No need to keep this blocked if you ask me.

[ruudk]

Discussed with @Nyholm and decided to drop PHPSpec. Did that in #21. When that is merged you can rebase.

[ruudk]

Rebased this PR in #22 , so that we can merge and tag it!

[dbu]

merged in #22. thanks a lot @GeoDpto and @ruudk