bug symfony#57875 [String] Fixed Quorum plural, and Quora singular in EnglishInflector (Dean151)

This PR was merged into the 6.4 branch.

Discussion
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[String] Fixed Quorum plural, and Quora singular in EnglishInflector

| Q             | A
| ------------- | ---
| Branch?       | 6.4 <!-- see below -->
| Bug fix?      | yes
| New feature?  | no <!-- please update src/**/CHANGELOG.md files -->
| Deprecations? | no <!-- please update UPGRADE-*.md and src/**/CHANGELOG.md files -->
| Issues        | None
| License       | MIT

When asking English Inflector the plural of Quorum, we get Quora instead of expected Quorums.
Also added the relevant test coverage for it.

**Rationale**:
ApiPlatform removed their "legacy inflector" and started using Symfony/String inflector instead. Quorum was inflected to Quorums with Api Platform legacy inflection. Therefore, the migration to Symfony inflection introduce breaking changes (with possible workarounds)

**Problem**:
After discussion on Slack, it turns out that Quora could be a valid plural, as explained on Wiktionary: https://en.wiktionary.org/wiki/quorum#Noun
Therefore:
> quorum (plural [quorums](https://en.wiktionary.org/wiki/quorums#English) or [quora](https://en.wiktionary.org/wiki/quora#English))
> The plural [quora](https://en.wiktionary.org/wiki/quora#English) is sometimes objected to on the grounds that it is not grammatically correct: in Latin quorum is a plural pronoun, not a singular noun.

`@xabbuh` suggest that native speakers define which one is the most widely used to decide if this change is a good idea, or not. Debate is open :)

**Proposed solution**:
- Singular of Quora should return Quorum (Quora currently returned)
- Plural of Quorum should return both Quora & Quorums ; in an order to be defined depending on the most used one.

Commits
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e457717 [String] Fixed Quorum plural, that was inflected to be only "Quora" and never "Quorums"

Author: fabpot

src/Symfony/Component/String/Inflector/EnglishInflector.php

@@ -37,6 +37,9 @@ final class EnglishInflector implements InflectorInterface
         // curricula (curriculum)
         ['alucirruc', 9, true, true, 'curriculum'],
 
+        // quora (quorum)
+        ['arouq', 5, true, true, 'quorum'],
+
         // genera (genus)
         ['areneg', 6, true, true, 'genus'],
 
@@ -265,6 +268,9 @@ final class EnglishInflector implements InflectorInterface
         // albums (album)
         ['mubla', 5, true, true, 'albums'],
 
+        // quorums (quorum)
+        ['murouq', 6, true, true, ['quora', 'quorums']],
+
         // bacteria (bacterium), curricula (curriculum), media (medium), memoranda (memorandum), phenomena (phenomenon), strata (stratum)
         ['mu', 2, true, true, 'a'],
 

src/Symfony/Component/String/Tests/Inflector/EnglishInflectorTest.php

@@ -134,6 +134,8 @@ public static function singularizeProvider()
             ['poppies', 'poppy'],
             ['prices', ['prex', 'prix', 'price']],
             ['quizzes', 'quiz'],
+            ['quora', 'quorum'],
+            ['quorums', 'quorum'],
             ['radii', 'radius'],
             ['roofs', 'roof'],
             ['roses', ['ros', 'rose', 'rosis']],
@@ -285,6 +287,7 @@ public static function pluralizeProvider()
             ['poppy', 'poppies'],
             ['price', 'prices'],
             ['quiz', 'quizzes'],
+            ['quorum', ['quora', 'quorums']],
             ['radius', 'radii'],
             ['roof', ['roofs', 'rooves']],
             ['rose', 'roses'],