feat/bulk-support-flow-batch:

### Add Dirty Window Handling in Flow Module

 - **Updated `greptime-proto` Dependency**: Updated the `greptime-proto` dependency to a new revision in `Cargo.lock` and `Cargo.toml`.
 - **Flow Module Enhancements**:
   - Added `DirtyWindowRequest` handling in `flow.rs`, `node_manager.rs`, `test_util.rs`, `flownode_impl.rs`, and `server.rs`.
   - Implemented `handle_mark_window_dirty` function to manage dirty time windows.
 - **Bulk Insert Enhancements**:
   - Modified `bulk_insert.rs` to notify flownodes about dirty time windows using `update_flow_dirty_window`.
 - **Removed Unused Imports**: Cleaned up unused imports in `greptime_handler.rs`, `grpc.rs`, and `mod.rs`.

Signed-off-by: Lei, HUANG <mrsatangel@gmail.com>

src/client/src/flow.rs

@@ -12,7 +12,7 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
-use api::v1::flow::{FlowRequest, FlowResponse};
+use api::v1::flow::{DirtyWindowRequest, DirtyWindowRequests, FlowRequest, FlowResponse};
 use api::v1::region::InsertRequests;
 use common_error::ext::BoxedError;
 use common_meta::node_manager::Flownode;
@@ -44,6 +44,16 @@ impl Flownode for FlowRequester {
             .map_err(BoxedError::new)
             .context(common_meta::error::ExternalSnafu)
     }
+
+    async fn handle_mark_window_dirty(
+        &self,
+        req: DirtyWindowRequest,
+    ) -> common_meta::error::Result<FlowResponse> {
+        self.handle_mark_window_dirty(req)
+            .await
+            .map_err(BoxedError::new)
+            .context(common_meta::error::ExternalSnafu)
+    }
 }
 
 impl FlowRequester {
@@ -91,4 +101,20 @@ impl FlowRequester {
             .into_inner();
         Ok(response)
     }
+
+    async fn handle_mark_window_dirty(&self, req: DirtyWindowRequest) -> Result<FlowResponse> {
+        let (addr, mut client) = self.client.raw_flow_client()?;
+        let response = client
+            .handle_mark_dirty_time_window(DirtyWindowRequests {
+                requests: vec![req],
+            })
+            .await
+            .or_else(|e| {
+                let code = e.code();
+                let err: crate::error::Error = e.into();
+                Err(BoxedError::new(err)).context(FlowServerSnafu { addr, code })
+            })?
+            .into_inner();
+        Ok(response)
+    }
 }