fix: remove post_id arg

Author: winverse

src/components/common/FollowButton.tsx

@@ -83,6 +83,7 @@ const FollowButton: React.FC<PostFollowButtonProps> = ({
             __typename: 'User',
           },
         });
+        console.log('hello', variables);
         follow({ variables });
         setButtonText('팔로잉');
       }

src/lib/graphql/user.ts

@@ -184,7 +184,7 @@ export const CONFIRM_CHANGE_EMAIL = gql`
 `;
 
 export const FOLLOW_USER = gql`
-  mutation Follow($following_user_id: ID!, $post_id: ID!) {
+  mutation Follow($following_user_id: ID!) {
     follow(following_user_id: $following_user_id) {
       id
       is_followed
@@ -193,7 +193,7 @@ export const FOLLOW_USER = gql`
 `;
 
 export const UNFOLLOW_USER = gql`
-  mutation Unfollow($following_user_id: ID!, $post_id: ID!) {
+  mutation Unfollow($following_user_id: ID!) {
     unfollow(following_user_id: $following_user_id) {
       id
       is_followed