carsonbot: Cannot create task after upgrading Doctrine

This error shows up in the log:

app.ERROR: Failed dispatching “pull_request” event for “carsonbot-playground/symfony” repository. {“exception”:"[object] (Doctrine\DBAL\Exception\NotNullConstraintViolationException(code: 0): An exception occurred while executing ‘INSERT INTO task (repository_full_name, number, action, created_at, updated_at, verify_after) VALUES (?, ?, ?, ?, ?, ?)’ with params ["carsonbot-playground\/symfony", 22, 4, "2021-05-31 14:10:11", "2021-05-31 14:10:11", "2021-06-01 10:10:11"]:\n\nSQLSTATE[23502]: Not null violation: 7 ERROR: null value in column "id" violates not-null constraint\nDETAIL: Failing row contains (null, carsonbot-playground/symfony, 22, 4, 2021-05-31 14:10:11, 2021-05-31 14:10:11, 2021-06-01 10:10:11). at /app/vendor/doctrine/dbal/lib/Doctrine/DBAL/Driver/AbstractPostgreSQLDriver.php:64)\n[previous exception] [object] (Doctrine\DBAL\Driver\PDO\Exception(code: 23502): SQLSTATE[23502]: Not null violation: 7 ERROR: null value in column "id" violates

Here is the only place we create a Task:

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This error was fixed by PR #181. It just downgraded doctrine packages.

  - Removing doctrine/deprecations (v0.5.3)
  - Downgrading doctrine/common (3.1.2 => 3.0.2)
  - Downgrading doctrine/dbal (2.13.1 => 2.10.4)
  - Downgrading doctrine/doctrine-bundle (2.3.2 => 2.2.1)
  - Downgrading doctrine/inflector (2.0.3 => 1.4.4)
  - Downgrading doctrine/migrations (3.1.2 => 3.1.1)
  - Downgrading doctrine/orm (2.8.4 => 2.7.4)

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Let’s update them one by one.

• Upgrade to doctrine/common 3.1.2
• Upgrade to doctrine/dbal 2.13.1
• Upgrade to doctrine/doctrine-bundle 2.3.2
• Upgrade to doctrine/inflector 2.0.3
• Upgrade to doctrine/migrations 3.1.2
• Upgrade to doctrine/orm 2.8.4