feat: manual compaction parallelism (#7086)

* feat/manual-compaction-parallelism:
 ### Add Parallelism Support to Compaction Requests

 - **`Cargo.lock` & `Cargo.toml`**: Updated `greptime-proto` dependency to a new revision.
 - **`flush_compact_table.rs`**: Enhanced `parse_compact_params` to support a new `parallelism` parameter, allowing users to
 specify the level of parallelism for table compaction.
 - **`handle_compaction.rs`**: Integrated `parallelism` into the compaction scheduling process, defaulting to 1 if not
 specified.
 - **`request.rs` & `region_request.rs`**: Modified `CompactRequest` to include `parallelism`, with logic to handle unspecifie
 values.
 - **`requests.rs`**: Updated `CompactTableRequest` structure to include an optional `parallelism` field.

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

* feat/manual-compaction-parallelism:
 ### Commit Message

 Enhance Compaction Request Handling

 - **`flush_compact_table.rs`**:
   - Renamed `parse_compact_params` to `parse_compact_request`.
   - Introduced `DEFAULT_COMPACTION_PARALLELISM` constant.
   - Updated parsing logic to handle keyword arguments for `strict_window` and `regular` compaction types, including `parallelism` and `window`.
   - Modified tests to reflect changes in parsing logic and default parallelism handling.

 - **`request.rs`**:
   - Updated `parallelism` handling in `RegionRequestBody::Compact` to use the new default value.

 - **`requests.rs`**:
   - Changed `CompactTableRequest` to use a non-optional `parallelism` field with a default value of 1.

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

* feat/manual-compaction-parallelism:
 ### Update `flush_compact_table.rs` Parameter Validation

 - Modified parameter validation in `flush_compact_table.rs` to restrict the maximum number of parameters from 4 to 3 in the `parse_compact_request` function.

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

* feat/manual-compaction-parallelism:
 Update `greptime-proto` dependency

 - Updated the `greptime-proto` dependency to a new revision in both `Cargo.lock` and `Cargo.toml`.

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

---------

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

src/operator/src/request.rs

@@ -109,6 +109,7 @@ impl Requester {
             .map(|partition| {
                 RegionRequestBody::Compact(CompactRequest {
                     region_id: partition.id.into(),
+                    parallelism: request.parallelism,
                     options: Some(request.compact_options),
                 })
             })
@@ -146,6 +147,7 @@ impl Requester {
     ) -> Result<AffectedRows> {
         let request = RegionRequestBody::Compact(CompactRequest {
             region_id: region_id.into(),
+            parallelism: 1,
             options: None, // todo(hl): maybe also support parameters in region compaction.
         });