feat(router): add route to invalidate cache entry (#1100)

Co-authored-by: jeeva <jeeva.ramu@codurance.com>
Co-authored-by: Sanchith Hegde <22217505+SanchithHegde@users.noreply.github.com>

crates/router_env/src/logger/types.rs

@@ -184,6 +184,8 @@ pub enum Flow {
     AttachDisputeEvidence,
     /// Retrieve Dispute Evidence flow
     RetrieveDisputeEvidence,
+    /// Invalidate cache flow
+    CacheInvalidate,
 }
 
 ///