feature: Implement run_batch for MultiSimulator

[rmshaffer]

Issue #, if available:

Description of changes: Braket SDK changes to support run_batch for the new MultiSimulator class in https://github.com/amazon-braket/amazon-braket-default-simulator-python/pull/260

Testing done:

Merge Checklist

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Tests

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[codecov[bot]]

Codecov Report

Attention: Patch coverage is 42.64706% with 39 lines in your changes missing coverage. Please review.

Project coverage is 99.56%. Comparing base (0ad486f) to head (9cafa74).

Files	Patch %	Lines
src/braket/devices/local_simulator.py	42.64%	39 Missing :warning:

Additional details and impacted files

```diff @@ Coverage Diff @@ ## main #1000 +/- ## =========================================== - Coverage 100.00% 99.56% -0.44% =========================================== Files 135 135 Lines 8941 9005 +64 Branches 2008 2022 +14 =========================================== + Hits 8941 8966 +25 - Misses 0 39 +39 ```

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[rmshaffer]

Closing this in favor of https://github.com/amazon-braket/amazon-braket-sdk-python/pull/1005