Update to new coroutine API since nightly-2023-10-21.

```diff
- #![feature(generators)]
+ #![feature(coroutines)]
```

src/batch/src/lib.rs

@@ -18,7 +18,7 @@
 #![feature(exact_size_is_empty)]
 #![feature(type_alias_impl_trait)]
 #![cfg_attr(coverage, feature(no_coverage))]
-#![feature(generators)]
+#![feature(coroutines)]
 #![feature(proc_macro_hygiene, stmt_expr_attributes)]
 #![feature(iterator_try_collect)]
 #![feature(lint_reasons)]

src/common/src/lib.rs

@@ -24,7 +24,7 @@
 #![feature(trusted_len)]
 #![feature(allocator_api)]
 #![feature(lint_reasons)]
-#![feature(generators)]
+#![feature(coroutines)]
 #![feature(map_try_insert)]
 #![feature(lazy_cell)]
 #![feature(error_generic_member_access)]

src/compute/src/lib.rs

@@ -13,7 +13,7 @@
 // limitations under the License.
 
 #![feature(trait_alias)]
-#![feature(generators)]
+#![feature(coroutines)]
 #![feature(type_alias_impl_trait)]
 #![feature(let_chains)]
 #![feature(result_option_inspect)]

src/compute/tests/cdc_tests.rs

@@ -13,7 +13,7 @@
 // limitations under the License.
 
 #![feature(let_chains)]
-#![feature(generators)]
+#![feature(coroutines)]
 
 use std::sync::atomic::AtomicU64;
 use std::sync::Arc;

src/compute/tests/integration_tests.rs

@@ -12,7 +12,7 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
-#![feature(generators)]
+#![feature(coroutines)]
 #![feature(proc_macro_hygiene, stmt_expr_attributes)]
 
 use std::sync::atomic::AtomicU64;

src/connector/src/lib.rs

@@ -14,7 +14,7 @@
 
 #![expect(dead_code)]
 #![allow(clippy::derive_partial_eq_without_eq)]
-#![feature(generators)]
+#![feature(coroutines)]
 #![feature(proc_macro_hygiene)]
 #![feature(stmt_expr_attributes)]
 #![feature(box_patterns)]

src/expr/core/src/lib.rs

@@ -17,7 +17,7 @@
 #![feature(lint_reasons)]
 #![feature(iterator_try_collect)]
 #![feature(lazy_cell)]
-#![feature(generators)]
+#![feature(coroutines)]
 #![feature(arc_unwrap_or_clone)]
 #![feature(never_type)]
 

src/expr/impl/src/lib.rs

@@ -28,7 +28,7 @@
 #![feature(exclusive_range_pattern)]
 #![feature(lazy_cell)]
 #![feature(round_ties_even)]
-#![feature(generators)]
+#![feature(coroutines)]
 #![feature(test)]
 #![feature(arc_unwrap_or_clone)]
 

src/frontend/src/lib.rs

@@ -15,7 +15,7 @@
 #![allow(clippy::derive_partial_eq_without_eq)]
 #![feature(map_try_insert)]
 #![feature(negative_impls)]
-#![feature(generators)]
+#![feature(coroutines)]
 #![feature(proc_macro_hygiene, stmt_expr_attributes)]
 #![feature(trait_alias)]
 #![feature(extract_if)]

src/rpc_client/src/lib.rs

@@ -19,7 +19,7 @@
 #![feature(result_option_inspect)]
 #![feature(type_alias_impl_trait)]
 #![feature(associated_type_defaults)]
-#![feature(generators)]
+#![feature(coroutines)]
 #![feature(iterator_try_collect)]
 #![feature(hash_extract_if)]
 #![feature(try_blocks)]

src/source/src/lib.rs

@@ -16,7 +16,7 @@
 #![feature(trait_alias)]
 #![feature(lint_reasons)]
 #![feature(result_option_inspect)]
-#![feature(generators)]
+#![feature(coroutines)]
 #![feature(hash_extract_if)]
 #![feature(type_alias_impl_trait)]
 #![feature(box_patterns)]

src/storage/hummock_test/src/bin/replay/main.rs

@@ -13,7 +13,7 @@
 // limitations under the License.
 
 #![feature(bound_map)]
-#![feature(generators)]
+#![feature(coroutines)]
 #![feature(stmt_expr_attributes)]
 #![feature(proc_macro_hygiene)]
 

src/storage/hummock_trace/src/lib.rs

@@ -16,7 +16,7 @@
 #![feature(cursor_remaining)]
 #![feature(bound_map)]
 #![feature(trait_alias)]
-#![feature(generators)]
+#![feature(coroutines)]
 
 mod collector;
 mod error;

src/storage/src/lib.rs

@@ -18,7 +18,7 @@
 #![feature(bound_map)]
 #![feature(custom_test_frameworks)]
 #![feature(extract_if)]
-#![feature(generators)]
+#![feature(coroutines)]
 #![feature(hash_extract_if)]
 #![feature(lint_reasons)]
 #![feature(proc_macro_hygiene)]

src/stream/src/lib.rs

@@ -21,7 +21,7 @@
 #![feature(let_chains)]
 #![feature(hash_extract_if)]
 #![feature(extract_if)]
-#![feature(generators)]
+#![feature(coroutines)]
 #![feature(iter_from_generator)]
 #![feature(proc_macro_hygiene)]
 #![feature(stmt_expr_attributes)]