Bump spring-boot-autoconfigure in /ambari-logsearch-server

Bumps [spring-boot-autoconfigure](https://github.com/spring-projects/spring-boot) from 2.1.5.RELEASE to 2.5.15.
- [Release notes](https://github.com/spring-projects/spring-boot/releases)
- [Commits](https://github.com/spring-projects/spring-boot/compare/v2.1.5.RELEASE...v2.5.15)

---
updated-dependencies:
- dependency-name: org.springframework.boot:spring-boot-autoconfigure
  dependency-type: direct:production
...

Signed-off-by: dependabot[bot] <support@github.com>
diff --git a/ambari-logsearch-server/pom.xml b/ambari-logsearch-server/pom.xml
old mode 100755
new mode 100644
index 0680c0d..1a15756
--- a/ambari-logsearch-server/pom.xml
+++ b/ambari-logsearch-server/pom.xml
@@ -27,7 +27,7 @@
   <url>http://maven.apache.org</url>
   <name>Ambari Logsearch Server</name>
   <properties>
-    <spring-boot.version>2.1.5.RELEASE</spring-boot.version>
+    <spring-boot.version>2.5.15</spring-boot.version>
     <!-- <spring-boot.version>2.1.0.M2</spring-boot.version> -->
     <spring.version>5.1.8.RELEASE</spring.version>
     <spring.security.version>5.1.5.RELEASE</spring.security.version>