Fix typos in source code using codespell

From https://github.com/lucasdemarchi/codespell

core/math/matrix3.cpp

@@ -229,7 +229,7 @@ Vector3 Basis::get_scale() const {
 	// FIXME: We eventually need a proper polar decomposition.
 	// As a cheap workaround until then, to ensure that R is a proper rotation matrix with determinant +1
 	// (such that it can be represented by a Quat or Euler angles), we absorb the sign flip into the scaling matrix.
-	// As such, it works in conjuction with get_rotation().
+	// As such, it works in conjunction with get_rotation().
 	real_t det_sign = determinant() > 0 ? 1 : -1;
 	return det_sign * Vector3(
 							  Vector3(elements[0][0], elements[1][0], elements[2][0]).length(),