chore(deps): update dependency types-paramiko to v5

Author: renovate[bot]

backend/requirements.txt

@@ -44,7 +44,7 @@ six==1.16.0
 sniffio==1.3.1
 sortedcontainers==2.4.0
 starlette==1.3.1
-types-paramiko==4.0.0.20260322
+types-paramiko==5.0.0.20260724
 types-requests==2.33.0.20260327
 typing_extensions==4.15.0
 tzdata==2025.3