wip: add boringssl to openssl-matrix.nix

Signed-off-by: Filip Skokan <panva.ip@gmail.com>

Author: panva

tools/nix/openssl-matrix.nix

@@ -11,5 +11,6 @@
     openssl_3_5
     openssl_3_6
     openssl_4_0
+    boringssl
     ;
 }