fixed float range tests

com.unity.perception/Runtime/Randomization/Configuration/ParameterConfiguration.cs

             foreach (var parameter in parameters)
             {
                 if (parameterNames.Contains(parameter.name))
-                    throw new ParameterConfigurationException($"Two or more parameters cannot share the same name " +
-                        $"(\"{parameter.name}\")");
+                    throw new ParameterConfigurationException(
+                        $"Two or more parameters cannot share the same name (\"{parameter.name}\")");
                 parameterNames.Add(parameter.name);
                 parameter.Validate();
             }

com.unity.perception/Runtime/Randomization/Samplers/FloatRange.cs

         /// <exception cref="ArgumentException"></exception>
         public void Validate()
         {
-            Assert.IsTrue(minimum > maximum);
+            Assert.IsTrue(minimum <= maximum);
         }
     }
 }

com.unity.perception/Tests/Runtime/Randomization/SamplerTests/FloatRangeTests.cs

         [Test]
         public void InvalidRange()
         {
-            Assert.Throws<ArgumentException>(() => new FloatRange(1, -1).Validate());
+            Assert.Throws<UnityEngine.Assertions.AssertionException>(() => new FloatRange(1, -1).Validate());
         }
     }
 }