Fix: Mac/Extras.install.py，Can not filter osx .DS_store file, skip issue

[zhangbo2012]

Fix: Mac/Extras.install.py，Can not filter osx .DS_store file, skip issue

Mac/Extras.install.py，Can not filter osx DS_store file

As

ifname=='.DS_store': return0

But in OSX, Real File Name is .DS_Store, like this

(venv) zhangbo@zhangbodeMacBook-Pro a2 % ll -a
total 16
drwxr-xr-x 4 zhangbo staff 128 Oct 22 17:34 .
drwxr-xr-x 8 zhangbo staff 256 Oct 22 17:18 ..
-rw-r--r--@ 1 zhangbo staff 6148 Oct 22 17:17 .DS_Store
drwxr-xr-x 3 zhangbo staff 96 Oct 22 17:23 123

So we need update .DS_store to .DS_Store

Thanks to @arhadthedev show a more clean code

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[bedevere-bot]

Most changes to Python require a NEWS entry.

Please add it using the blurb_it web app or the blurb command-line tool.

[bedevere-bot]

Most changes to Python require a NEWS entry.

Please add it using the blurb_it web app or the blurb command-line tool.

[bedevere-bot]

Most changes to Python require a NEWS entry.

Please add it using the blurb_it web app or the blurb command-line tool.

[ned-deily]

Superseded by #98943