[fix][broker] Remove blocking calls from internalGetPartitionedStats #22528

Job	Run time
Preconditions	12s
Build and License check	0s
Build Pulsar docker image	0s
CI - Unit - ${{ matrix.name }}	0s
Build Pulsar java-test-image docker image	0s
CI - Unit - Upload Coverage	0s
Run CodeQL Analysis	0s
CI - System - ${{ matrix.name }}	0s
CI Flaky - System - ${{ matrix.name }}	0s
CI - Integration - ${{ matrix.name }}	0s
CI - System - Upload Coverage	0s
OWASP dependency check	0s
CI - Integration - Upload Coverage	0s
Build Pulsar on MacOS	0s
Delete system test docker image artifact	0s
Pulsar CI checks completed	3s
Delete integration test docker image artifact	0s
	15s

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