AP_Math: correct warning on fabsF

2024-08-08T01:51:53.6780446Z ../../libraries/AP_Math/vector3.cpp:432:9: warning: absolute value function 'fabsf' given an argument of type 'const double' but has parameter of type 'float' which may cause truncation of value [-Wabsolute-value]
2024-08-08T01:51:53.6781336Z     if (fabsF(cosv) >= 1) {
2024-08-08T01:51:53.6781583Z         ^
2024-08-08T01:51:53.6781930Z ../../libraries/AP_Math/ftype.h:50:18: note: expanded from macro 'fabsF'
2024-08-08T01:51:53.6782342Z #define fabsF(x) fabsf(x)
2024-08-08T01:51:53.6782572Z                  ^
2024-08-08T01:51:53.6789178Z ../../libraries/AP_Math/vector3.cpp:633:16: note: in instantiation of member function 'Vector3<double>::angle' requested here
2024-08-08T01:51:53.6789800Z template class Vector3<double>;

libraries/AP_Math/vector3.cpp

@@ -429,7 +429,7 @@ T Vector3<T>::angle(const Vector3<T> &v2) const
         return 0.0f;
     }
     const T cosv = ((*this)*v2) / len;
-    if (fabsF(cosv) >= 1) {
+    if (cosv >= 1 || cosv <= -1) {
         return 0.0f;
     }
     return acosF(cosv);