This PR was squashed before being merged into the 6.4 branch.

Discussion
----------

[Intl] Update data to ICU 78.1

| Q             | A
| ------------- | ---
| Branch?       | 6.4
| Bug fix?      | no
| New feature?  | no
| Deprecations? | no
| Issues        | Fixes #60041
| License       | MIT

The latest version of ICU has a different format (for whatever reason), I only changed the literal dash to be a set of either dot and dash:

```php
$gitTag = $git->getLastTag(fn ($tag) => preg_match('#^release-[0-9]{1,}[.-][0-9]{1}$#', $tag));
$shortIcuVersion = strip_minor_versions(preg_replace('#release-([0-9]{1,})[.-]([0-9]{1,})#', '$1.$2', $gitTag));
```

All other file changes are from the update command 👍

### Tests changes:

`TimezonesTest.php` updated because there is a new `America/Coyhaique` timezone.
`ScriptsTest.php` updated because of four new scripts: `Berf`, `Sidt`, `Tayo`, and `Tols`.
`ResourceBundleTestCase::LOCALES` updated because of fifteen new locales (most are sub-regional): `ba`, `ba_RU`, `en_EE`, `en_GE`, `en_JP`, `en_LT`, `en_LV`, `en_UA`, `kk_Arab`, `kk_Arab_CN`, `ku_Latn`, `ku_Latn_IQ`, `ku_Latn_TR`, `ku_Latn_SY`, and `ku_SY`.
`LanguagesTest.php` updated because of three new ALPHA-3 codes: `kek`, `mww`, and `suz`.
`CurrenciesTest.php` updated because of new code: `XCG`.

Commits
-------

f7c316b [Intl] Update data to ICU 78.1

* 6.4:
  Restore Relay 8.5 test
  account for PHP_ZTS being a boolean value on PHP 8.4+
  [Intl] Update data to ICU 78.1
  [Console] Fix exception message when abbreviation matches multiple hidden commands
  [FrameworkBundle] Fix TypeError when traversing scalar values in debug:config
  [DependencyInjection] Fix loop corruption in CheckTypeDeclarationsPass
  [DependencyInjection] Fix invalid PHP syntax for nullable TypedReference in PhpDumper
  Fix typo in comment
  [Translation][Routing] Fix typos
  [String] Fix normalization in trimPrefix/trimSuffix

* 7.3:
  fix test
  Restore Relay 8.5 test
  account for PHP_ZTS being a boolean value on PHP 8.4+
  [Intl] Update data to ICU 78.1
  [Notifier][Smsbox] Add tests for `Mode` enum
  [DependencyInjection] Remove unused variable
  [Console] Fix exception message when abbreviation matches multiple hidden commands
  [FrameworkBundle] Fix TypeError when traversing scalar values in debug:config
  [DependencyInjection] Fix loop corruption in CheckTypeDeclarationsPass
  [Security] Fix UserBadge validation bypass via identifier normalizer
  [DependencyInjection] Fix invalid PHP syntax for nullable TypedReference in PhpDumper
  Fix typo in comment
  [Translation][Routing] Fix typos
  [Config] Fix nullable EnumNode with BackedEnum
  [String] Fix normalization in trimPrefix/trimSuffix

* 7.4: (40 commits)
  [PropertyInfo] treat mixed[] the same as array when getting types from docblocks
  treat `mixed[]` the same as `array` when getting types from docblocks
  install ext-zstd on PHP 8.5 as well
  fix merge
  [Console] Fix profile invokable command
  sync ControllerHelper docblock with latest AbstractController changes
  fix: Typehint for `createForm` in abstractController
  [Notifier][Mercure] Add support for Mercure 0.7
  register attribute loader arguments in a forward-compatible way
  ensure compatibility with RelayCluster 0.20.0
  mark test using a Redis connection as an integration test
  ensure compatibility with Relay extension 0.20.0
  [FrameworkBundle] Allow backed enum to be used in initial_marking workflow configuration
  [DependencyInjection] Fix `query_string` env processor for URLs without query string
  [HttpFoundation] Fix Expires response header for EventStream
  Bump Symfony version to 7.4.1
  Update VERSION for 7.4.0
  Update CHANGELOG for 7.4.0
  -
  [DependencyInjection] Fix state corruption in PhpFileLoader during recursive imports
  ...