docs: update install instructions to reference version 4.3.1

Author: devondragon

README.md

@@ -130,13 +130,13 @@ Spring Boot 4.0 brings significant changes including Spring Security 7 and requi
 <dependency>
     <groupId>com.digitalsanctuary</groupId>
     <artifactId>ds-spring-user-framework</artifactId>
-    <version>4.3.0</version>
+    <version>4.3.1</version>
 </dependency>
 ```
 
 **Gradle:**
 ```groovy
-implementation 'com.digitalsanctuary:ds-spring-user-framework:4.3.0'
+implementation 'com.digitalsanctuary:ds-spring-user-framework:4.3.1'
 ```
 
 #### Spring Boot 4.0 Key Changes
@@ -207,7 +207,7 @@ Follow these steps to get up and running with the Spring User Framework in your
 
    **Spring Boot 4.0 (Java 21+):**
    ```groovy
-   implementation 'com.digitalsanctuary:ds-spring-user-framework:4.3.0'
+   implementation 'com.digitalsanctuary:ds-spring-user-framework:4.3.1'
    ```
 
    **Spring Boot 3.5 (Java 17+):**