fix: add --parsable to sbatch command (#522)

Fix #521.

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## Summary by CodeRabbit

- **Refactor**
- Improved the format of job submission output for Slurm jobs, making
job information easier to parse after submission.

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Signed-off-by: Jinzhe Zeng <jinzhe.zeng@ustc.edu.cn>

Author: njzjz

dpdispatcher/machines/slurm.py

@@ -85,7 +85,7 @@ def do_submit(self, job):
         # self.context.write_file(fname=os.path.join(self.context.submission.work_base, script_file_name), write_str=script_str)
         command = "cd {} && {} {}".format(
             shlex.quote(self.context.remote_root),
-            "sbatch",
+            "sbatch --parsable",
             shlex.quote(script_file_name),
         )
         ret, stdin, stdout, stderr = self.context.block_call(command)