CI: github actions: update LibreSSL to 3.3.0
diff --git a/.github/matrix.py b/.github/matrix.py
index 406218d..148dcde 100644
--- a/.github/matrix.py
+++ b/.github/matrix.py
@@ -105,7 +105,7 @@
         "stock",
         "OPENSSL_VERSION=1.0.2u",
         "LIBRESSL_VERSION=2.9.2",
-        "LIBRESSL_VERSION=3.1.1",
+        "LIBRESSL_VERSION=3.3.0",
         "BORINGSSL=yes",
     ]:
         flags = ["USE_OPENSSL=1"]