add spring-boot 4.1.0 to testmatrix

Author: lbloder

.github/workflows/spring-boot-4-matrix.yml

@@ -21,7 +21,7 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        springboot-version: [ '4.0.0', '4.0.5' ]
+        springboot-version: [ '4.0.0', '4.0.5', '4.1.0' ]
 
     name: Spring Boot ${{ matrix.springboot-version }}
     env: