feat(repartition): implement region deallocation for repartition procedure (#7522)

* feat: implement deallocate regions for repartition procedure

Signed-off-by: WenyXu <wenymedia@gmail.com>

* feat(metric-engine): add force flag to drop physical regions with associated logical regions

Signed-off-by: WenyXu <wenymedia@gmail.com>

* feat: update table metadata after deallocating regions

Signed-off-by: WenyXu <wenymedia@gmail.com>

* chore: apply suggestions

Signed-off-by: WenyXu <wenymedia@gmail.com>

* chore: update proto

Signed-off-by: WenyXu <wenymedia@gmail.com>

---------

Signed-off-by: WenyXu <wenymedia@gmail.com>

src/datanode/src/region_server.rs

@@ -1641,7 +1641,10 @@ mod tests {
         let response = mock_region_server
             .handle_request(
                 region_id,
-                RegionRequest::Drop(RegionDropRequest { fast_path: false }),
+                RegionRequest::Drop(RegionDropRequest {
+                    fast_path: false,
+                    force: false,
+                }),
             )
             .await
             .unwrap();
@@ -1739,7 +1742,10 @@ mod tests {
         mock_region_server
             .handle_request(
                 region_id,
-                RegionRequest::Drop(RegionDropRequest { fast_path: false }),
+                RegionRequest::Drop(RegionDropRequest {
+                    fast_path: false,
+                    force: false,
+                }),
             )
             .await
             .unwrap_err();