Bump spring.version from 6.1.7 to 6.1.8 (#444)

Bumps `spring.version` from 6.1.7 to 6.1.8.

Updates `org.springframework:spring-jdbc` from 6.1.7 to 6.1.8
- [Release notes](https://github.com/spring-projects/spring-framework/releases)
- [Commits](spring-projects/spring-framework@v6.1.7...v6.1.8)

Updates `org.springframework:spring-test` from 6.1.7 to 6.1.8
- [Release notes](https://github.com/spring-projects/spring-framework/releases)
- [Commits](spring-projects/spring-framework@v6.1.7...v6.1.8)

Updates `org.springframework:spring-context` from 6.1.7 to 6.1.8
- [Release notes](https://github.com/spring-projects/spring-framework/releases)
- [Commits](spring-projects/spring-framework@v6.1.7...v6.1.8)

Updates `org.springframework:spring-aop` from 6.1.7 to 6.1.8
- [Release notes](https://github.com/spring-projects/spring-framework/releases)
- [Commits](spring-projects/spring-framework@v6.1.7...v6.1.8)

---
updated-dependencies:
- dependency-name: org.springframework:spring-jdbc
  dependency-type: direct:production
  update-type: version-update:semver-patch
- dependency-name: org.springframework:spring-test
  dependency-type: direct:production
  update-type: version-update:semver-patch
- dependency-name: org.springframework:spring-context
  dependency-type: direct:production
  update-type: version-update:semver-patch
- dependency-name: org.springframework:spring-aop
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

Signed-off-by: dependabot[bot] <[email protected]>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

Author: dependabot[bot]

pom.xml

@@ -105,7 +105,7 @@
     <ecj.version>3.33.0</ecj.version>
     <jdo.version>3.2.1</jdo.version>
     <springboot.version>3.2.5</springboot.version>
-    <spring.version>6.1.7</spring.version>
+    <spring.version>6.1.8</spring.version>
 
     <!-- SQL deps -->
     <db2.version>11.5.9.0</db2.version>