CI: github: upgrade the WolfSSL job to 5.7.0

WolfSSL 5.70 was released in March 2024,  let's upgrade our CI job to
this version.

diff --git a/.github/matrix.py b/.github/matrix.py
index 9300d325b44e07bf9565a07634de07f2d86c35fd..d3ab890dad1f9f88e296a433d00fc00c0b715764 100755 (executable)
--- a/.github/matrix.py
+++ b/.github/matrix.py
@@ -190,7 +190,7 @@ def main(ref_name):
             "OPENSSL_VERSION=1.0.2u",
             "OPENSSL_VERSION=1.1.1s",
             "QUICTLS=yes",
-            "WOLFSSL_VERSION=5.6.6",
+            "WOLFSSL_VERSION=5.7.0",
             "AWS_LC_VERSION=1.16.0",
             # "BORINGSSL=yes",
         ]