Update src/stdlib_linalg_determinant.fypp

Co-authored-by: Jeremie Vandenplas <[email protected]>

Author: perazz

src/stdlib_linalg_determinant.fypp

@@ -190,7 +190,7 @@ submodule (stdlib_linalg) stdlib_linalg_determinant
 
                 ! Initialize a matrix temporary
                 if (copy_a) then
-                   allocate(amat(m,n),source=a)
+                   allocate(amat, source=a)
                 else
                    amat => a
                 endif