feature #61837 [Form] Add new active_at, not_active_at and legal_tender options to CurrencyType (Crovitche-1623)

This PR was squashed before being merged into the 7.4 branch.

Discussion
----------

[Form] Add new `active_at`, `not_active_at` and `legal_tender` options to `CurrencyType`

| Q             | A
| ------------- | ---
| Branch?       | 7.4
| Bug fix?      | no
| New feature?  | yes
| Deprecations? | no
| Issues        | -
| License       | MIT

Add the options `active_at`, `not_active_at` and `legal_tender` from #61431 that give the possibility to filter the currencies more precisely. For instance:
- Keep only the current ones for the given `active_at` (`today` by default)
- Keep only the currencies that are [legal tender](https://en.wikipedia.org/wiki/Legal_tender)

Regarding BC compatibility, if people want to have the same results as prior 7.4, they should set the `active_at` and `legal_tender` options to null explicitely.

Commits
-------

a378fe6c58a [Form] Add new `active_at`, `not_active_at` and `legal_tender` options to `CurrencyType`

Author: fabpot

Currencies.php

@@ -225,10 +225,10 @@ private static function isDateActive(string $country, string $currency, array $c
             throw new \RuntimeException("Cannot check whether the currency $currency is active or not in $country because they are no validity dates available.");
         }
 
-        $from = \DateTimeImmutable::createFromFormat('Y-m-d', $currencyMetadata['from']);
+        $from = \DateTimeImmutable::createFromFormat('Y-m-d\TH:i:s', $currencyMetadata['from'], new \DateTimeZone('Etc/UTC'));
 
         if (\array_key_exists('to', $currencyMetadata)) {
-            $to = \DateTimeImmutable::createFromFormat('Y-m-d', $currencyMetadata['to']);
+            $to = \DateTimeImmutable::createFromFormat('Y-m-d\TH:i:s', $currencyMetadata['to'], new \DateTimeZone('Etc/UTC'));
         } else {
             $to = null;
         }