Prepare for Renovate with reusable workflows

[ghostwriter]

Q	A
QA	yes

Description

Adding Renovate to Laminas, Mezzio repositories. https://gist.github.com/weierophinney/49ca8ae2b916d898dd3d4162b26ff41b

• Configure minimum supported PHP version
• Update composer dependencies
• Update to reusable Continuous Integration workflow
• Update to reusable Automatic Releases workflow

[Ocramius]

@ghostwriter I see all these patches come with a composer update - that's a problem, because we shifted dependencies. Perhaps composer update --lock? Can the Update composer dependencies commit be dropped?

Also, I suggest sending one patch as a start, to see if it works, before replicating it everywhere, since otherwise you will get a bunch of reviews by other maintainers on different patches like this one :D

[ghostwriter]

@Ocramius Just following step 5, composer update https://gist.github.com/weierophinney/49ca8ae2b916d898dd3d4162b26ff41b

dropped commit Update composer dependencies, as requested.

[Ocramius]

Thanks @ghostwriter!