Add an extension for CliqueTrees.jl #5823

Job	Run time
Julia nightly - ubuntu-latest-x64 - Bridges/General	17m 37s
Julia 1 - windows-latest-x64 - General;Benchmarks;FileFormats;Nonlinear	7m 9s
Julia 1.10 - ubuntu-latest-x64 - General;Benchmarks;FileFormats;Nonlinear	4m 18s
Julia 1 - ubuntu-latest-x86 - Bridges/General	21m 30s
Julia 1.10 - ubuntu-latest-x64 - Bridges/General	11m 28s
Julia 1 - ubuntu-latest-x86 - Bridges/Constraint	18m 11s
Julia 1 - ubuntu-latest-x86 - General;Benchmarks;FileFormats;Nonlinear	8m 14s
Julia 1 - windows-latest-x64 - Bridges/General	18m 2s
Julia nightly - ubuntu-latest-x64 - Test	14m 20s
Julia 1.10 - ubuntu-latest-x64 - Bridges/Constraint	7m 53s
Julia 1 - windows-latest-x64 - Bridges/Objective;Bridges/Variable	6m 18s
Julia 1 - windows-latest-x64 - Bridges/Constraint	15m 24s
Julia nightly - ubuntu-latest-x64 - Bridges/Objective;Bridges/Variable	5m 52s
Julia nightly - ubuntu-latest-x64 - Bridges/Constraint	17m 47s
Julia 1.10 - ubuntu-latest-x64 - Test	8m 10s
Julia 1 - ubuntu-latest-x86 - Utilities	25m 19s
Julia 1 - ubuntu-latest-x86 - Bridges/Objective;Bridges/Variable	7m 26s
Julia 1.10 - ubuntu-latest-x64 - Bridges/Objective;Bridges/Variable	3m 4s
Julia 1 - ubuntu-latest-x86 - Test	17m 21s
Julia nightly - ubuntu-latest-x64 - General;Benchmarks;FileFormats;Nonlinear	5m 58s
Julia 1 - windows-latest-x64 - Utilities	23m 58s
Julia 1.10 - ubuntu-latest-x64 - Utilities	11m 20s
Julia nightly - ubuntu-latest-x64 - Utilities	23m 8s
Julia 1 - windows-latest-x64 - Test	16m 8s
	5h 15m 55s

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