dont restrict pytest-cov for 3.8 or lower python any more

pyproject.toml

@@ -22,15 +22,10 @@ classifiers=[
 
 [project.optional-dependencies]
 testing = [
-    # For Python 3.7, use pytest version below 8 which supports Python 3.7
-    'pytest>=7,<8; python_version < "3.8"',
-    # For Python 3.8 and above, use pytest 8 or later
-    'pytest>=8; python_version >= "3.8"',
-    # If you want to include coverage, either:
-    # Option A: install coverage on Python 3.7/3.8 using an older version
-    'pytest-cov>=5,<6; python_version < "3.8"',
-    # For Python 3.8 and above, use pytest-cov 6 or later
-    'pytest-cov>=6; python_version >= "3.8"',
-    # And include requests for tests
-    'requests>=2.0'
+    "pytest>=8.0",
+    "requests>=2.0",
+    # For Python 3.9 and up, use pytest-cov>=6.0
+    'pytest-cov>=6.0; python_version >= "3.9"',
+    # For older versions, use an older version of pytest-cov or omit it:
+    'pytest-cov; python_version < "3.9"' # we take any we get 
 ]
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