core/phpstan-baseline.neon out of sync [#3280050]

Problem/Motivation

Discovered whilst working on #3276839: Remove leftover dumpHeaders property.

In #3230541: Queue items only reserved by cron for 1 second 2 PHPStan errors were fixed by replacing the deprecated constant REQUEST_TIME with the service \Drupal::time()->getRequestTime() (Yay!), but the error suppressions in core/phpstan-baseline.neon where not removed (Booh!).

This leaves us with "Custom Commands Failed" on any test on 10.0.x-dev that changes core/phpstan-baseline.neon, see https://www.drupal.org/pift-ci-job/2379993.

(Tentatively) marking this a major, since we have failing tests in certain circumstances.

Steps to reproduce

Proposed resolution

Create and commit a new core/phpstan-baseline.neon by running $ vendor/bin/phpstan analyze --configuration=core/phpstan.neon.dist --generate-baseline ./core/phpstan-baseline.neon.

Remaining tasks

User interface changes

API changes

Data model changes

Release notes snippet

Issue fork drupal-3280050

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3280050-corephpstan-baseline.neon-out-of changes, plain diff MR !2263
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