Buildkite pipeline for QuantumClifford

fix: `RGB` color initialization in `QuantumCliffordMakieExt` colormap (#473)

Failed in 22m 26s
Package Tests CI on Buildkiteecho "Julia depot path ${JULIA_DEPOT_PATH}" && julia --project='~' -e ' using Pkg; pkg"dev .";'
Waited 3s
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Ran in 22m 21s
Downstream Breakage CI on Buildkiteecho "Julia depot path ${JULIA_DEPOT_PATH}" && julia --project='~' -e ' using Pkg; pkg"dev .";' && julia --project='~' -e ' using Pkg; Pkg.add("QuantumSavory"); Pkg.build("QuantumSavory"); Pkg.test("QuantumSavory"); Pkg.add("BPGates"); Pkg.build("BPGates"); Pkg.test("BPGates");'
Waited 7m 31s
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Ran in 5m 48s
Total Job Run Time: 28m 11s