Enable logdensity tests

[sunxd3]

it appears that test group log_density is not run in CI, this PR fixes it

[github-actions]

Benchmark results on macOS (aarch64)

BridgeStan not found at location specified by $BRIDGESTAN environment variable, downloading version 2.5.0 to /Users/runner/.bridgestan/bridgestan-2.5.0
Done!
Model dogs produces error: ErrorException("log_density() failed with unknown exception\n")

Model	Parameter Count	Data Count	Stan Density Time (µs)	Stan Density Gradient Time (µs)	JuliaBUGS Density Time with Graph Walk (µs)	JuliaBUGS Density Gradient Time with ReverseDiff.jl(compiled tape) (µs)
rats	65	150	5.5416	8.25	58.083	243.958
pumps	12	10	0.988483	1.52606	8.95833	19.709
dogs	2	720	NA	NA	140.75	318.75
seeds	26	21	2.40527	3.1584	21.334	64.5
surgical_realistic	14	12	1.47727	2.00893	11.75	28.959
magnesium	108	96	13.8125	15.292	108.395	205.48
salm	22	18	4.41667	5.16667	16.542	42.041
equiv	15	20	4.1805	5.1875	15.042	46.209
dyes	9	30	2.00638	2.5555	9.6875	40.542
stacks	6	21	1.44079	2.07983	18.167	42.875
epil	303	236	44.834	50.584	194.146	561.291
blockers	47	44	2.83333	3.46517	44.416	88.542
oxford	244	240	12.292	14.4375	262.833	550.333
lsat	1006	5000	110.25	155.917	1341.71	2941.27
bones	33	422	80.459	91.917	336.792	410.125
mice	20	65	7.33333	9.22233	22.208	86.541
kidney	64	58	9.271	12.75	50.833	173.167
leuk	18	714	19.125	25.042	147.708	518.583
leukfr	40	714	25.375	31.834	279.584	691.75

Benchmark results on Ubuntu (x64)

BridgeStan not found at location specified by $BRIDGESTAN environment variable, downloading version 2.5.0 to /home/runner/.bridgestan/bridgestan-2.5.0
Done!
Model dogs produces error: ErrorException("log_density() failed with exception: Exception: bernoulli_lpmf: Probability parameter is inf, but must be in the interval [0, 1] (in '/home/runner/work/JuliaBUGS.jl/JuliaBUGS.jl/benchmark/stan/bugs_examples/vol1/dogs/dogs.stan', line 37, column 6 to line 38, column 62)\n")

Model	Parameter Count	Data Count	Stan Density Time (µs)	Stan Density Gradient Time (µs)	JuliaBUGS Density Time with Graph Walk (µs)	JuliaBUGS Density Gradient Time with ReverseDiff.jl(compiled tape) (µs)
rats	65	150	5.4662	8.07833	66.794	85.2785
pumps	12	10	1.00221	1.3375	11.717	6.84775
dogs	2	720	NA	NA	172.44	149.487
seeds	26	21	2.55927	3.17367	26.76	19.737
surgical_realistic	14	12	1.26282	1.5935	25.542	8.50233
magnesium	108	96	10.5295	12.213	124.831	79.317
salm	22	18	2.3714	3.118	20.719	12.5085
equiv	15	20	2.55564	3.48138	18.865	15.418
dyes	9	30	0.995833	1.337	12.1425	13.084
stacks	6	21	1.13481	1.69135	23.122	15.87
epil	303	236	35.085	40.947	262.847	239.369
blockers	47	44	3.34	3.817	59.3	28.493
oxford	244	240	16.35	18.995	335.222	173.792
lsat	1006	5000	182.499	221.526	2077.41	1213.55
bones	33	422	73.497	91.82	526.041	184.442
mice	20	65	7.574	9.33733	29.956	40.395
kidney	64	58	10.62	16.18	68.627	93.233
leuk	18	714	20.839	27.09	228.78	223.038
leukfr	40	714	23.944	31.959	236.599	242.21

[coveralls]

Pull Request Test Coverage Report for Build 12305533726

Details

• 0 of 0 changed or added relevant lines in 0 files are covered.
• No unchanged relevant lines lost coverage.
• Overall coverage increased (+1.1%) to 72.505%

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Totals
Change from base Build 12301989596:	1.1%
Covered Lines:	1424
Relevant Lines:	1964

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💛 - Coveralls