…e debug:container --show-arguments`

* 6.4:
  do not use PHPUnit mock objects without configured expectations
  do not use PHPUnit mock objects without configured expectations
  [HttpClient] Fix and test replacing repeated headers with CachingHttpClient
  [Messenger] Fix processing batches
  do not use PHPUnit mock objects without configured expectations
  do not use PHPUnit mock objects without configured expectations

…(nicolas-grekas)

This PR was merged into the 6.4 branch.

Discussion
----------

[FrameworkBundle] Fix mocking decorated services in tests

| Q             | A
| ------------- | ---
| Branch?       | 6.4
| Bug fix?      | yes
| New feature?  | no
| Deprecations? | no
| Issues        | Fix #62693 and #62726
| License       | MIT

The root issue under #62693 was that the innermost decorated service (the original service wrapped by all decorators) was getting inlined into the first decorator during container compilation. When the service is inlined, it no longer exists as a separate service in the container, so `TestContainer::set()` can't replace it.

Commits
-------

234dab0ab69 [FrameworkBundle] Fix mocking decorated services in tests

* 6.4:
  [FrameworkBundle] Fix mocking decorated services in tests

…to-local

* 6.4:
  fix high deps tests
  [HttpFoundation] Fix double-prefixing of session keys when using redis/memcached
  [FrameworkBundle] Revert destination file change for secrets:decrypt-to-local
  [Process] Ignore invalid env var names

… in KernelTestCase

When the cache is empty, and a test starts, it will compile the container, and
warm up the cache. However, this means that the container used during the test
is not fresh anymore, as it has been compiled with the cache warmer service
registered. This change ensures that if the cache warmer is detected in the
container after booting, a new kernel is booted to provide a fresh container for
the test.

…ataCollector`

* 6.4:
  do not use PHPUnit mock objects without configured expectations
  fix low deps test with Console component < 6.4
  [FrameworkBundle] Check for console package before register `CommandDataCollector`
  do not use PHPUnit mock objects without configured expectations
  [FrameworkBundle] Ensure a fresh container is used after cache warmup in KernelTestCase
  do not use PHPUnit mock objects without configured expectations
  do not use PHPUnit mock objects without configured expectations
  [Finder] Fix `Finder::append()` breaking generic typing contract