Update .editorconfig to include python and perl scripts

https://bugs.webkit.org/show_bug.cgi?id=264974
rdar://118523696

Reviewed by Justin Michaud.

This patch updates .editorconfig to include python and perl scripts so that we can use consistent rule supported by editors.

* .editorconfig:

Canonical link: https://commits.webkit.org/270928@main

.editorconfig

@@ -1,6 +1,6 @@
 # Editor configuration, see https://editorconfig.org
 
-[*.{c,cpp,h,rb}]
+[*.{c,cpp,h,rb,py,pl}]
 indent_style = space
 indent_size = 4
 tab_width = 4