[Merged by Bors] - Limit size of ActiveSet in ballot encoding #18797

Job	Run time
filter-changes	7s
build (ubuntu-22.04)	1m 12s
lint	1m 30s
build (self-hosted, linux, arm64)	1m 26s
build-tools (ubuntu-22.04)	1m 1s
quicktests	1m 24s
build (macos-13)	1m 23s
build-tools (self-hosted, linux, arm64)	1m 19s
build (self-hosted, macOS, ARM64, go-spacemesh)	31s
build-tools (macos-13)	29s
build (windows-2022)	1m 10s
build-tools (self-hosted, macOS, ARM64, go-spacemesh)	1m 25s
unittests (ubuntu-22.04)	1m 30s
unittests (self-hosted, linux, arm64)	8s
build-tools (windows-2022)	1m 14s
unittests (macos-13)	1m 15s
unittests (self-hosted, macOS, ARM64, go-spacemesh)	1m 1s
unittests (windows-2022)	1m 12s
ci-status	2s
	19m 19s

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