build(deps): Bump lsiobase/nginx from 3.14 to 3.15-php8-version-ef5b8f3b

Bumps lsiobase/nginx from 3.14 to 3.15-php8-version-ef5b8f3b.

---
updated-dependencies:
- dependency-name: lsiobase/nginx
  dependency-type: direct:production
...

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