ci: update FreeBSD version

Author: Brooooooklyn

.github/workflows/CI.yml

@@ -159,7 +159,7 @@ jobs:
           RUSTUP_IO_THREADS: 1
         with:
           operating_system: freebsd
-          version: '14.2'
+          version: '14.3'
           memory: 8G
           cpu_count: 3
           environment_variables: 'DEBUG RUSTUP_IO_THREADS'