python-pycares: update to 5.0.1

- bump 4.10.0 -> 5.0.1
- update cffi build dependency comment (cffi>=2.0.0b1 required for Python 3.14)
- add test.sh

Signed-off-by: Alexandru Ardelean <alex@shruggie.ro>

lang/python/python-pycares/test.sh

@@ -0,0 +1,20 @@
+[ "$1" = python3-pycares ] || exit 0
+
+python3 - << 'EOF'
+import pycares
+
+# Verify key classes and constants
+assert hasattr(pycares, "Channel")
+assert hasattr(pycares, "QUERY_TYPE_A")
+assert hasattr(pycares, "QUERY_TYPE_AAAA")
+
+# Verify version
+assert hasattr(pycares, "__version__")
+print(f"pycares version: {pycares.__version__}")
+
+# Create a channel (without actually making DNS queries)
+channel = pycares.Channel()
+assert channel is not None
+
+print("python3-pycares OK")
+EOF