Bump spring-boot.version from 4.1.1 to 4.1.2 (#1299)

Bumps `spring-boot.version` from 4.1.1 to 4.1.2.

Updates `org.springframework.boot:spring-boot-dependencies` from 4.1.1 to 4.1.2
- [Release notes](https://github.com/spring-projects/spring-boot/releases)
- [Commits](spring-projects/spring-boot@v4.1.1...v4.1.2)

Updates `org.springframework.boot:spring-boot-maven-plugin` from 4.1.1 to 4.1.2
- [Release notes](https://github.com/spring-projects/spring-boot/releases)
- [Commits](spring-projects/spring-boot@v4.1.1...v4.1.2)

---
updated-dependencies:
- dependency-name: org.springframework.boot:spring-boot-dependencies
  dependency-version: 4.1.2
  dependency-type: direct:production
  update-type: version-update:semver-patch
- dependency-name: org.springframework.boot:spring-boot-maven-plugin
  dependency-version: 4.1.2
  dependency-type: direct:development
  update-type: version-update:semver-patch
...

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

Author: dependabot[bot]

conformance-tests/client-spring-http-client/pom.xml

@@ -23,7 +23,7 @@
 	<properties>
 		<module.name>io.modelcontextprotocol.sdk.conformance.client.spring</module.name>
 		<java.version>17</java.version>
-		<spring-boot.version>4.1.1</spring-boot.version>
+		<spring-boot.version>4.1.2</spring-boot.version>
 		<spring-ai.version>2.0.2</spring-ai.version>
 		<spring-ai-mcp-security.version>0.1.14</spring-ai-mcp-security.version>
 		<maven.deploy.skip>true</maven.deploy.skip>