Un-necessary loglinear complexity in `platform._platform`

**Bug Description:**
A  of simple quadratic complexity code in platform.py

**Vulnerability Locations :**
1. https://github.com/python/cpython/blob/98a5b830d2463351800f4d76edba1a306a3e0ec9/Lib/platform.py#L642

**Repair Status:**
None

**Common Information:**
* **CPython Version:** main branch
* **Operating System:** Linux


### Linked PRs
* gh-136069