Update phpstan/phpstan-shim requirement from ^0.11 to ^0.12

[dependabot-preview]

Updates the requirements on phpstan/phpstan-shim to permit the latest version.

Release notes

Sourced from phpstan/phpstan-shim's releases.

0.12.0

Thank you for using PHPStan!

Read more about the latest release here!

With the release of PHPStan 0.12, the primary Composer package used by most users,
phpstan/phpstan, has switched to a PHAR file. It works the same way as phpstan-shim.
The need for a separate PHAR distribution has ceased.
Package phpstan/phpstan-shim is no longer needed.

You should upgrade to phpstan/phpstan 0.12 with the following steps:

1. In your composer.json, rewrite line with "phpstan/phpstan-shim"
   to "phpstan/phpstan": "^0.12".
2. Delete your composer.lock.
3. Delete vendor/phpstan directory.
4. Delete vendor/bin/phpstan and vendor/bin/phpstan.phar.
5. Run composer install.

If you have any problem upgrading, don't hesitate to describe your issue at:
https://github.com/phpstan/phpstan/issues/new/choose

Commits

• f2b69bd Instructions how to upgrade to phpstan/phpstan
• f36a437 Updated PHPStan to commit 9f61e443b88ac58ec4ac3be0ba6ee327742d2807
• 104b618 Updated PHPStan to commit 3170a85face97d303f4f928d375290f12d684c23
• 38ed195 Updated PHPStan to commit cf2363d0de2c2475b179b7c06fd1d74621796657
• 904abef Updated PHPStan to commit 348997755d62ebe85c3a7a6abe9ed3559bd0c0e7
• d4f3ac3 Updated PHPStan to commit 97c421bdc63561bca18c18cfc4f86ff359ded88d
• 968e5f6 Updated PHPStan to commit 8e4e55223cb3c871d82dd53308554df00722d6d9
• c5d8e9f Updated PHPStan to commit 78c5ec2902680dc364edbc91496b6e2de235e130
• 33d5a3f Updated PHPStan to commit 731e6e3837b242eb9735ee612e09ad1c53e89d03
• 792aa39 Updated PHPStan to commit b84ab7a8468c417bd9b3d88be01d844c9ac02684
• Additional commits viewable in compare view

Dependabot will resolve any conflicts with this PR as long as you don't alter it yourself. You can also trigger a rebase manually by commenting @dependabot rebase.

---

Dependabot commands and options

You can trigger Dependabot actions by commenting on this PR:

• @dependabot rebase will rebase this PR
• @dependabot recreate will recreate this PR, overwriting any edits that have been made to it
• @dependabot merge will merge this PR after your CI passes on it
• @dependabot squash and merge will squash and merge this PR after your CI passes on it
• @dependabot cancel merge will cancel a previously requested merge and block automerging
• @dependabot reopen will reopen this PR if it is closed
• @dependabot close will close this PR and stop Dependabot recreating it. You can achieve the same result by closing it manually
• @dependabot ignore this major version will close this PR and stop Dependabot creating any more for this major version (unless you reopen the PR or upgrade to it yourself)
• @dependabot ignore this minor version will close this PR and stop Dependabot creating any more for this minor version (unless you reopen the PR or upgrade to it yourself)
• @dependabot ignore this dependency will close this PR and stop Dependabot creating any more for this dependency (unless you reopen the PR or upgrade to it yourself)
• @dependabot use these labels will set the current labels as the default for future PRs for this repo and language
• @dependabot use these reviewers will set the current reviewers as the default for future PRs for this repo and language
• @dependabot use these assignees will set the current assignees as the default for future PRs for this repo and language
• @dependabot use this milestone will set the current milestone as the default for future PRs for this repo and language
• @dependabot badge me will comment on this PR with code to add a "Dependabot enabled" badge to your readme

Additionally, you can set the following in your Dependabot dashboard:

• Update frequency (including time of day and day of week)
• Pull request limits (per update run and/or open at any time)
• Automerge options (never/patch/minor, and dev/runtime dependencies)
• Out-of-range updates (receive only lockfile updates, if desired)
• Security updates (receive only security updates, if desired)

[ondrejmirtes]

phpstan/phpstan-shim 0.12 is there to just inform people they should switch to phpstan/phpstan :)

> vendor/bin/phpstan analyse -c phpstan.neon -l max src

Thank you for using PHPStan!

With the release of PHPStan 0.12, the primary Composer package used by most users,
phpstan/phpstan, has switched to a PHAR file. It works the same way as phpstan-shim.
The need for a separate PHAR distribution has ceased.

Package phpstan/phpstan-shim is no longer needed.

You should upgrade to phpstan/phpstan 0.12 with the following steps:
1) In your composer.json, rewrite line with "phpstan/phpstan-shim"
   to "phpstan/phpstan": "^0.12".
2) Delete your composer.lock.
3) Delete vendor/phpstan directory.
4) Delete vendor/bin/phpstan and vendor/bin/phpstan.phar.
5) Run composer install.

If you have any problem upgrading, don't hesitate to describe your issue at:

https://github.com/phpstan/phpstan/issues/new/choose

[dependabot-preview]

Looks like phpstan/phpstan-shim is no longer a dependency, so this is no longer needed.