Update lori dependency from 0.7.2 to 0.8.1

lori 0.8.0 introduced a regression where _on_connection_failure()
could fire spuriously after hard_close() on an already-connected
session (ponylang/lori#183). This caused the TerminateSentOnClose
test to crash. lori 0.8.1 fixes this by restoring _connected to the
outer guard in _try_shutdown().

Skipping 0.8.0 entirely since it had this known bug.

Author: SeanTAllen

CLAUDE.md

@@ -18,7 +18,7 @@ SSL version is mandatory. Tests run with `--sequential`. Integration tests requi
 ## Dependencies
 
 - `ponylang/ssl` 2.0.0 (MD5 password hashing, SCRAM-SHA-256 crypto primitives via `ssl/crypto`, SSL/TLS via `ssl/net`)
-- `ponylang/lori` 0.7.2 (TCP networking, STARTTLS support)
+- `ponylang/lori` 0.8.1 (TCP networking, STARTTLS support)
 
 Managed via `corral`.
 

corral.json

@@ -5,7 +5,7 @@
   "deps": [
    {
       "locator": "github.com/ponylang/lori.git",
-      "version": "0.7.2"
+      "version": "0.8.1"
     },
     {
       "locator": "github.com/ponylang/ssl.git",