chore: bump hiredis (#31328)

* Update pyproject.toml

* Update requirements-slim.txt

* Update requirements.txt

backend/requirements-slim.txt

@@ -38,7 +38,7 @@ alembic==1.18.4
 
 pycrdt==0.13.1
 redis==8.0.1
-hiredis==3.4.0
+hiredis==3.4.2
 
 python-dateutil==2.9.0.post0
 pytz==2026.2

backend/requirements.txt

@@ -34,7 +34,7 @@ alembic==1.18.4
 
 pycrdt==0.13.1
 redis==8.0.1
-hiredis==3.4.0
+hiredis==3.4.2
 
 pytz==2026.2
 

pyproject.toml

@@ -40,7 +40,7 @@ dependencies = [
 
     "pycrdt==0.13.1",
     "redis==8.0.1",
-    "hiredis==3.4.0",
+    "hiredis==3.4.2",
     # "valkey-glide-sync==2.3.1",  # optional: install manually if VECTOR_DB=valkey
 
     "pytz==2026.2",