Update dependency SunCalcNet to v2

[renovate]

This PR contains the following updates:

Package	Change	Age	Confidence
SunCalcNet	1.2.3 → 2.0.0

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Release Notes

kostebudinoski/SunCalc-Net (SunCalcNet)

v2.0.0

Compare Source

• Ported the SunCalc JS v2.0.0 (https://github.com/mourner/suncalc/releases/tag/v2.0.0) precision rewrite - 5×–150× more accurate, matching timeanddate.com / U.S. Naval Observatory (#​59 (kostebudinoski/SunCalcNet#59)).
• Breaking: all calculated values change (they are now far more accurate); the public API, radians, and south-based azimuth are unchanged, so existing code compiles and runs without modification.
• Improved sun position accuracy via the full Meeus ch. 25 model, ΔT/Terrestrial-Time handling, and refraction-corrected altitude (#​64 (kostebudinoski/SunCalcNet#64)).
• Improved sun rise/set/twilight accuracy with Newton-refined solar transit and independently solved rise/set times (#​65 (kostebudinoski/SunCalcNet#65)).
• Improved moon position accuracy using the truncated ELP-2000/82 series plus geocentric parallax; moon distance error drops from ~3500 km to ~20 km (#​66 (kostebudinoski/SunCalcNet#66)).
• Improved moon illumination accuracy (#​67 (kostebudinoski/SunCalcNet#67)).
• Improved moon rise/set accuracy with upper-limb horizon height and Newton refinement (#​68 (kostebudinoski/SunCalcNet#68)).
• Added Waxing flag to MoonIllumination (#​69 (kostebudinoski/SunCalcNet#69)).
• Added support for custom sun phase angles via a new GetSunPhases overload, SunPhaseAngle.Default, and SunPhaseName.Custom (#​70 (kostebudinoski/SunCalcNet#70)).

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