Upgrade llguidance to `0.5.1rc0` #1058

Job	Run time
bare-install (ubuntu-latest, 3.9)	24s
bare-install (ubuntu-latest, 3.10)	22s
bare-install (ubuntu-latest, 3.11)	23s
bare-install (ubuntu-latest, 3.12)	26s
bare-install (windows-latest, 3.9)	1m 28s
bare-install (windows-latest, 3.10)	1m 28s
bare-install (windows-latest, 3.11)	1m 27s
bare-install (windows-latest, 3.12)	1m 28s
bare-install (macos-14, 3.9)	37s
bare-install (macos-14, 3.10)	47s
bare-install (macos-14, 3.11)	25s
bare-install (macos-14, 3.12)	35s
basic-tests-linux-python-latest (llamacpp_llama2_7b_cpu) / run-plain-basic-tests	7m 22s
basic-tests-linux-python-latest (llamacpp_mistral_7b_cpu) / run-plain-basic-tests	10m 41s
basic-tests-linux-python-latest (llamacpp_phi3_mini_4k_instruct_cpu) / run-plain-basic-tests	8m 44s
basic-tests-linux-python-latest (transformers_gpt2_cpu) / run-plain-basic-tests	5m 13s
basic-tests-linux-python-latest (transformers_phi2_cpu) / run-plain-basic-tests	10m 29s
basic-tests-linux-python-latest (transformers_phi3_mini_4k_instruct_cpu) / run-plain-basic-tests	12m 56s
End Stage 1	0s
basic-tests-gpu-python-latest	0s
basic-tests-linux-python-other	0s
server-tests	0s
End Stage 2	0s
basic-tests-gpu-python-others	0s
basic-tests-mac-arm	0s
basic-tests-mac-x86	0s
basic-tests-win	0s
	1h 5m 15s

Provide feedback