…eys (xabbuh)

This PR was merged into the 5.4 branch.

Discussion
----------

[Serializer] convert empty CSV header names into numeric keys

| Q             | A
| ------------- | ---
| Branch?       | 5.4
| Bug fix?      | yes
| New feature?  | no
| Deprecations? | no
| Issues        | Fix #54709
| License       | MIT

Commits
-------

93ee57b48a convert empty CSV header names into numeric keys

* 5.4:
  fix compatibility with Twig 3.10
  [Strings][EnglishInflector] Fix incorrect pluralisation of 'Album'
  handle union and intersection types for cascaded validations
  move wiring of the property info extractor to the ObjectNormalizer
  move Process component dep to require-dev
  Remove calls to `onConsecutiveCalls()`
  fix: remove unwanted type cast
  accept AbstractAsset instances when filtering schemas
  better distinguish URL schemes and windows drive letters
  convert empty CSV header names into numeric keys

* 5.4:
  add missing assertion

* 5.4:
  separate the property info and write info extractors

…th optional args

* 5.4:
  [Serializer] Fix `GetSetMethodNormalizer` not working with setters with optional args

…ndre-daubois)

This PR was merged into the 5.4 branch.

Discussion
----------

Fix various warnings across components test suite

| Q             | A
| ------------- | ---
| Branch?       | 5.4
| Bug fix?      | yes
| New feature?  | no
| Deprecations? | no
| Issues        | -
| License       | MIT

We found out with `@xabbuh` that some warnings are "hidden" in the test suite of 5.4. Indeed, a risky test was raised in upper branches (starting from 6.4). However, this test was not marked as risky in the 5.4 branch. The reproducer is straightforward:

- `vendor/bin/phpunit src/Symfony/Component/Serializer` marked the test as risky.
- `./phpunit src/Symfony/Component/Serializer` did **not** mark the test as risky.

I went through components and bundle and executed PHPUnit to fix various warnings and deprecations hidden in the 5.4 CI. We don't know yet why 5.4 behaves this way. In the meantime, here are a few fixes of deprecated behaviors I found.

Commits
-------

a6fe93c707 Fix various warnings across components test suite

* 5.4:
  replace wurstmeister Docker images for Kafka and Zookeeper
  [PasswordHasher] Make bcrypt nul byte hash test tolerant to PHP related failures
  [HttpClient] Revert fixing curl default options
  [Validator] Update Dutch (nl) translation
  Fix exception thrown during `LDAP_MODIFY_BATCH_REMOVE_ALL` batch operations
  Fix various warnings across components test suite

* 5.4:
  [PropertyInfo] Update DoctrineExtractor for new DBAL 4 BIGINT type
  Update security.nl.xlf
  [Validator] IBAN Check digits should always between 2 and 98
  [Security] Populate translations for trans-unit 20
  add missing plural translation messages
  filter out empty HTTP header parts
  [String] Fix folded in compat mode
  Remove calls to `getMockForAbstractClass()`
  [ErrorHandler] Do not call xdebug_get_function_stack() with xdebug >= 3.0 when not in develop mode
  [Serializer] Fix type for missing property
  add test for JSON response with null as content
  [Filesystem] Fix dumpFile `stat failed` error hitting custom handler
  Remove calls to `TestCase::iniSet()` and calls to deprecated methods of `MockBuilder`
  [PhpUnitBridge] Fix `DeprecationErrorHandler` with PhpUnit 10

This reverts commit 2c9352dd91ebaf37b8a3e3c26fd8e1306df2fb73, reversing
changes made to 18c3e87f1512be2cc50e90235b144b13bc347258.

* 5.4:
  Revert "minor #54653 Auto-close PRs on subtree-splits (nicolas-grekas)"