[CI]Disable early exit to complete all tests (#6482)

### What this PR does / why we need it?
1. Disable the feature to exit early upon encountering an error in order
to complete all tests.
2. Within each partition, tests are re-sorted by `estimated_time` in
ascending order. This allows the CI to cover as many test cases as
possible in the early stages.

### Does this PR introduce _any_ user-facing change?

### How was this patch tested?

- vLLM version: v0.14.1
- vLLM main:
dc917cceb8

---------

Signed-off-by: MrZ20 <2609716663@qq.com>

.github/workflows/scripts/run_suite.py

@@ -74,6 +74,7 @@ def auto_partition(files, rank, size):
 
     # Return the files corresponding to the indices in the specified rank's partition
     indices = partitions[rank]
+    indices.sort(key=lambda i: files[i].estimated_time)
     return [files[i] for i in indices]
 
 
@@ -189,7 +190,7 @@ def main():
     arg_parser.add_argument(
         "--continue-on-error",
         action="store_true",
-        default=False,
+        default=True,
         help="Continue running remaining tests even if one fails (useful for nightly tests)",
     )
     args = arg_parser.parse_args()