Hush breakpoint deserialization logs (#32430)

Release Notes:

- debugger: Remove "Deserializing N breakpoints" from the Zed log

crates/project/src/debugger/breakpoint_store.rs

@@ -841,7 +841,7 @@ impl BreakpointStore {
                         } else {
                             "breakpoint"
                         };
-                        log::info!("Deserialized {count} {breakpoint_str} at path: {path}");
+                        log::debug!("Deserialized {count} {breakpoint_str} at path: {path}");
                     }
 
                     this.breakpoints = new_breakpoints;