chore: use singular style in middleware config class name (#5502)

api/configs/middleware/vdb/pgvectors_config.py

@@ -0,0 +1,34 @@
+from typing import Optional
+
+from pydantic import BaseModel, Field, PositiveInt
+
+
+class PGVectoRSConfig(BaseModel):
+    """
+    PGVectoRS configs
+    """
+
+    PGVECTO_RS_HOST: Optional[str] = Field(
+        description='PGVectoRS host',
+        default=None,
+    )
+
+    PGVECTO_RS_PORT: Optional[PositiveInt] = Field(
+        description='PGVectoRS port',
+        default=None,
+    )
+
+    PGVECTO_RS_USER: Optional[str] = Field(
+        description='PGVectoRS user',
+        default=None,
+    )
+
+    PGVECTO_RS_PASSWORD: Optional[str] = Field(
+        description='PGVectoRS password',
+        default=None,
+    )
+
+    PGVECTO_RS_DATABASE: Optional[str] = Field(
+        description='PGVectoRS database',
+        default=None,
+    )