Relax psutil upper bound to allow psutil 7.x

browserstack-local 1.2.15 pinned psutil>=5.6.6,<7, which conflicts with
environments that already have psutil 7.x installed (e.g. alongside the
BrowserStack SDK). The only psutil API used is psutil.pid_exists(),
which is unchanged in psutil 7, so the upper bound is unnecessary.

Fixes LOC-7228

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>

Author: vivianludrick

setup.py

@@ -5,7 +5,7 @@
 setup(
   name = 'browserstack-local',
   packages = ['browserstack'],
-  version = '1.2.15',
+  version = '1.2.16',
   description = 'Python bindings for Browserstack Local',
   long_description=open('README.md').read(),
   long_description_content_type='text/markdown',
@@ -16,7 +16,7 @@
   keywords = ['BrowserStack', 'Local', 'selenium', 'testing'],
   classifiers = [],
   install_requires=[
-        'psutil>=5.6.6,<7',
+        'psutil>=5.6.6',
   ],
 )