APCu requirement for 32MB always displays since APCu 5.1.25

Problem/Motivation

https://pecl.php.net/package/APCu/5.1.25
- The apc.shm_segments ini option has been removed. Multiple SHM segments are no longer
supported. (They were already not supported when using mmap, which is the default mode of
operation)

However, the APCu check for 32MB in Drupal since https://www.drupal.org/project/drupal/issues/3466399 🐛 APCu requirement for 32M is checking wrong value Needs review is referencing the segments INI value. But because it now returns false it will calculate an actual size of 0 and always display the warning that you need to set to 32MB or above.

Steps to reproduce

Update to APCu 5.1.25
Head to status report
Warning always appears

Proposed resolution

Check for segment count ini returning false and assume 1 if it does as it now always 1 in APCu 5.1.25

Remaining tasks

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User interface changes

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Introduced terminology

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API changes

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Data model changes

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Release notes snippet

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