CompatHelper: bump compat for CoordRefSystems to 0.18 for package test, (keep existing compat)

[github-actions]

This pull request changes the compat entry for the CoordRefSystems package from 0.15, 0.16, 0.17 to 0.15, 0.16, 0.17, 0.18 for package test.
This keeps the compat entries for earlier versions.

Note: I have not tested your package with this new compat entry.
It is your responsibility to make sure that your package tests pass before you merge this pull request.

[github-actions]

Benchmark Results

	main	158e308...	main / 158e308...
Differentials/Differential	0.208 ± 0.0011 μs	0.208 ± 0.0019 μs	1 ± 0.011
Differentials/Jacobian	0.169 ± 0.0001 μs	0.169 ± 0.0001 μs	1 ± 0.00084
Integrals/Segment/Scalar GaussKronrod	0.558 ± 0.0055 μs	0.562 ± 0.0056 μs	0.994 ± 0.014
Integrals/Segment/Scalar GaussLegendre	1.62 ± 0.0079 μs	1.64 ± 0.0091 μs	0.988 ± 0.0073
Integrals/Segment/Scalar HAdaptiveCubature	0.695 ± 0.012 μs	0.671 ± 0.0077 μs	1.04 ± 0.022
Integrals/Segment/Vector GaussKronrod	2.71 ± 0.059 μs	2.76 ± 0.059 μs	0.979 ± 0.03
Integrals/Segment/Vector GaussLegendre	17.8 ± 0.49 μs	17.5 ± 0.43 μs	1.02 ± 0.038
Integrals/Segment/Vector HAdaptiveCubature	3.6 ± 0.097 μs	3.63 ± 0.11 μs	0.991 ± 0.039
Integrals/Sphere/Scalar GaussKronrod	0.0682 ± 0.00037 ms	0.0701 ± 0.0005 ms	0.972 ± 0.0087
Integrals/Sphere/Scalar GaussLegendre	1.87 ± 0.0064 ms	1.87 ± 0.0094 ms	1 ± 0.0061
Integrals/Sphere/Scalar HAdaptiveCubature	0.0478 ± 0.00011 ms	0.0477 ± 0.00013 ms	1 ± 0.0036
Integrals/Sphere/Vector GaussKronrod	0.102 ± 0.0014 ms	0.102 ± 0.0014 ms	1 ± 0.02
Integrals/Sphere/Vector GaussLegendre	3.29 ± 0.061 ms	3.33 ± 0.061 ms	0.987 ± 0.026
Integrals/Sphere/Vector HAdaptiveCubature	0.099 ± 0.0014 ms	0.0997 ± 0.0016 ms	0.994 ± 0.021
Rules/GaussLegendre	21.6 ± 0.59 μs	21.6 ± 0.55 μs	0.999 ± 0.037
Specializations/Scalar GaussLegendre/BezierCurve	0.25 ± 0.0071 ms	0.25 ± 0.0071 ms	0.999 ± 0.04
Specializations/Scalar GaussLegendre/Line	6.98 ± 0.072 μs	6.97 ± 0.048 μs	1 ± 0.012
Specializations/Scalar GaussLegendre/Plane	0.744 ± 0.0018 ms	0.744 ± 0.0015 ms	1 ± 0.0032
Specializations/Scalar GaussLegendre/Ray	5.92 ± 0.04 μs	5.81 ± 0.035 μs	1.02 ± 0.0093
Specializations/Scalar GaussLegendre/Rope	0.0508 ± 0.0002 ms	0.0507 ± 0.00023 ms	1 ± 0.006
Specializations/Scalar GaussLegendre/Tetrahedron	0.154 ± 0.0016 s	0.153 ± 0.0014 s	1.01 ± 0.014
Specializations/Scalar GaussLegendre/Triangle	0.604 ± 0.0076 ms	0.635 ± 0.0083 ms	0.951 ± 0.017
time_to_load	1.44 ± 0.0041 s	1.44 ± 0.0045 s	0.999 ± 0.0042

Benchmark Plots

A plot of the benchmark results have been uploaded as an artifact to the workflow run for this PR.
Go to "Actions"->"Benchmark a pull request"->[the most recent run]->"Artifacts" (at the bottom).

[JoshuaLampert]

Let's merge this into the other branch to test.