Upgrade spring boot dependencies to 2.5.5

Also remove org.jetbrains.annotations that is not part of spring boot
2.5.5 anymore.

Issue-ID: CPS-582
Change-Id: Ia15861b423c9ba63ebf416513aac9ac61eab4742
Signed-off-by: Bruno Sakoto <bruno.sakoto@bell.ca>
diff --git a/pom.xml b/pom.xml
index c75cda2..53969b4 100644
--- a/pom.xml
+++ b/pom.xml
@@ -51,7 +51,7 @@
             <dependency>
                 <groupId>org.springframework.boot</groupId>
                 <artifactId>spring-boot-dependencies</artifactId>
-                <version>2.5.0</version>
+                <version>2.5.5</version>
                 <type>pom</type>
                 <scope>import</scope>
             </dependency>