build(deps): bump mybatis-spring-boot-starter from 2.2.0 to 3.0.1

Bumps [mybatis-spring-boot-starter](https://github.com/mybatis/spring-boot-starter) from 2.2.0 to 3.0.1.
- [Release notes](https://github.com/mybatis/spring-boot-starter/releases)
- [Commits](https://github.com/mybatis/spring-boot-starter/compare/mybatis-spring-boot-2.2.0...mybatis-spring-boot-3.0.1)

---
updated-dependencies:
- dependency-name: org.mybatis.spring.boot:mybatis-spring-boot-starter
  dependency-type: direct:production
  update-type: version-update:semver-major
...

Signed-off-by: dependabot[bot] <support@github.com>

pom.xml

@@ -99,7 +99,7 @@
         <dependency>
             <groupId>org.mybatis.spring.boot</groupId>
             <artifactId>mybatis-spring-boot-starter</artifactId>
-            <version>2.2.0</version>
+            <version>3.0.1</version>
         </dependency>
 
         <!--     pageHelper   -->

src/main/java/cn/celess/blog/controller/CategoryController.java

@@ -37,17 +37,6 @@ public class CategoryController {
         return Response.success(categoryService.delete(id));
     }
 
-    /**
-     * 删除一个分类
-     *
-     * @param id 分类id
-     * @return Response
-     */
-    @DeleteMapping("/admin/category/del/{id}")
-    public Response deleteOne(@PathVariable("id") long id) {
-        return Response.success(categoryService.delete(id));
-    }
-
     /**
      * 更新一个分类
      *