fix: button border radius

Author: guswnsxodlf

packages/bezier-react/src/components/Button/Button.styled.ts

@@ -309,7 +309,7 @@ function getEffectCSSFromVariant(styleVariant: ButtonProps['styleVariant'], size
     case ButtonStyleVariant.FloatingAlt:
       return css`
         ${({ foundation }) => foundation?.elevation?.ev2()};
-        border-radius: 8px;
+        ${({ foundation }) => foundation?.rounding?.round8};
 
         &:hover {
           ${({ foundation }) => foundation?.elevation?.ev3()};

packages/bezier-react/src/components/Button/__snapshots__/Button.test.tsx.snap

@@ -2065,6 +2065,7 @@ exports[`Button Test > StyleVariant Test > FloatingAlt 1`] = `
   padding: 0 14px 0 14px;
   background-color: #FFFFFF;
   box-shadow: inset 0 0 2px 0 #FFFFFF1F, 0 0 2px 1px #0000000D, 0 2px 6px #00000014;
+  overflow: hidden;
   border-radius: 8px;
   color: #FFFFFF;
   background-color: #5E56F0;