Vendors OpenSSL inside of Python wheels

OpenSSL ABI is not stable

python/Cargo.toml

@@ -17,6 +17,7 @@ doctest = false
 [dependencies]
 oxigraph = {version = "0.2", path="../lib", features = ["sled", "http_client"]}
 pyo3 = {version = "0.13", features = ["extension-module"]}
+native-tls = {version = "0.2", features = ["vendored"]}
 
 [package.metadata.maturin]
 classifier = [

python/tests/test_store.py

@@ -171,7 +171,7 @@ class TestAbstractStore(unittest.TestCase, ABC):
 
     def test_update_load(self):
         store = self.store()
-        store.update('LOAD <http://www.w3.org/1999/02/22-rdf-syntax-ns>')
+        store.update('LOAD <https://www.w3.org/1999/02/22-rdf-syntax-ns>')
         self.assertGreater(len(store), 100)
 
     def test_load_ntriples_to_default_graph(self):