style: applied clang-format fixes

Author: Chahat

src/main/java/com/thealgorithms/maths/BellNumbers.java

@@ -56,4 +56,4 @@ public static long compute(int n) {
         // The Bell number B_n is the first number in the n-th row
         return bellTriangle[n][0];
     }
-}
+}

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

@@ -50,4 +50,4 @@ void testOverflowProtection() {
         // We expect an exception if the user asks for the impossible
         assertThrows(IllegalArgumentException.class, () -> BellNumbers.compute(26));
     }
-}
+}