[10.x] Fix collection shift less than one item

[faissaloux]

Helloo 👋🏻

In this PR I have fixed the collection shift() behaviour when trying to shift less than one item.

Fixes #51684

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$count = 0

Current

$collection = new Collection(['foo', 'bar', 'baz']); echo $collection->shift(0); // ['foo', 'bar'] echo $collection; // ['baz']

Expected

$collection = new Collection(['foo', 'bar', 'baz']); echo $collection->shift(0); // [] echo $collection; // ['foo', 'bar', 'baz']

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$count < 0

Current

$collection = new Collection(['foo', 'bar', 'baz']); echo $collection->shift(-1); // ['foo', 'bar', 'baz'] echo $collection; // []

Expected

$collection = new Collection(['foo', 'bar', 'baz']); echo $collection->shift(-1); // InvalidArgumentException