bpo-38820: Test with OpenSSL 3.0.0-alpha17 (GH-26266)

(cherry picked from commit 7109624d45bcf28fbb46a53354785dc5ff953a16)

Co-authored-by: Christian Heimes <christian@python.org>
diff --git a/Tools/ssl/multissltests.py b/Tools/ssl/multissltests.py
index 8d1132f..ec7c066 100755
--- a/Tools/ssl/multissltests.py
+++ b/Tools/ssl/multissltests.py
@@ -48,7 +48,7 @@
 
 OPENSSL_RECENT_VERSIONS = [
     "1.1.1k",
-    "3.0.0-alpha16"
+    "3.0.0-alpha17"
 ]
 
 LIBRESSL_OLD_VERSIONS = [