feat: Enable Comet broadcast by default #511

Job	Run time
ubuntu-latest/java 8-spark-3.4/rust	5m 20s
ubuntu-latest/java 8-spark-3.2/java	5m 8s
ubuntu-latest/java 8-spark-3.4/java	4m 30s
macos-14(Silicon)/java 8-spark-3.4/rust	4m 29s
ubuntu-latest/java 8-spark-3.3/java	5m 1s
ubuntu-latest/java 17-spark-3.4/rust	5m 22s
macos-14(Silicon)/java 8-spark-3.4/java	4m 48s
ubuntu-latest/java 11-spark-3.3/java	5m 9s
macos-14(Silicon)/java 17-spark-3.4/rust	4m 5s
ubuntu-latest/java 17-spark-3.4/java	5m 9s
ubuntu-latest/java 17-spark-3.3/java	5m 26s
macos-14(Silicon)/java 17-spark-3.4/java	4m 14s
${{ matrix.os }}/java ${{ matrix.java_version }}-spark-${{ matrix.spark-version }}/${{ matrix.test-target }}	0s
macos-14(Silicon)/java 8-spark-3.2/java	4m 28s
macos-14(Silicon)/java 17-spark-3.3/java	3m 59s
	1h 7m 8s

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