Fix clang-format style in LinearEquationTest

Author: arthurfellipe-dev

src/test/java/com/thealgorithms/maths/LinearEquationTest.java

@@ -32,4 +32,4 @@ void testSolveWithNegativeA() {
     void testAllIllegalInput() {
         assertAll(() -> assertThrows(IllegalArgumentException.class, () -> LinearEquation.solve(0, 5)), () -> assertThrows(IllegalArgumentException.class, () -> LinearEquation.solve(0, 0)), () -> assertThrows(IllegalArgumentException.class, () -> LinearEquation.solve(0, -3)));
     }
-}
+}