fixup! ✏️Rename MegaJoulePerTonne to MegajoulePerTonne (#1603)

Missed a compile error in tests

Author: angularsen

UnitsNet.Tests/CustomCode/SpecificEnergyTests.cs

@@ -10,7 +10,7 @@ public class SpecificEnergyTests : SpecificEnergyTestsBase
  protected override double JoulesPerKilogramInOneJoulePerKilogram => 1e0;
  protected override double KilojoulesPerKilogramInOneJoulePerKilogram => 1e-3;
  protected override double MegajoulesPerKilogramInOneJoulePerKilogram => 1e-6;
- protected override double MegaJoulesPerTonneInOneJoulePerKilogram => 1e-3;
+ protected override double MegajoulesPerTonneInOneJoulePerKilogram => 1e-3;
 
  protected override double BtuPerPoundInOneJoulePerKilogram => 4.299226e-4;