Update `StopWhenAny` constructor for `Vector`

[Vaibhavdixit02]

The element type should be subtype of StoppingCriterion

[codecov[bot]]

Codecov Report

All modified and coverable lines are covered by tests :white_check_mark:

Project coverage is 99.76%. Comparing base (7f8d7c6) to head (1b211bf).

Additional details and impacted files

```diff @@ Coverage Diff @@ ## master #376 +/- ## ========================================== + Coverage 99.74% 99.76% +0.01% ========================================== Files 74 74 Lines 7167 7167 ========================================== + Hits 7149 7150 +1 + Misses 18 17 -1 ```

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[kellertuer]

Ah, well-spotted; it even seems we usually always used the constructor in the line after that.

Could you

• add a small test for this case
• add a small entry in the changelog (cf. the other PR currently open for example) so this is reflected in there?

Thanks for opening this :)