fix: upgrade com.typesafe.akka:akka-actor_2.12 from 2.5.22 to 2.8.5

Snyk has created this PR to upgrade com.typesafe.akka:akka-actor_2.12 from 2.5.22 to 2.8.5.

See this package in Maven Repository:
https://mvnrepository.com/artifact/com.typesafe.akka/akka-actor_2.12/

See this project in Snyk:
https://app.snyk.io/org/kartheek-NLNXgSEGAw8QDbXT6eiLHX/project/d9b34ed7-9022-47cf-b8b4-3a8e924a4233?utm_source=github&utm_medium=referral&page=upgrade-pr

search-api/platform-core/search-core/pom.xml

@@ -13,7 +13,7 @@
 
     <properties>
         <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
-        <akka.version>2.5.22</akka.version>
+        <akka.version>2.8.5</akka.version>
         <scala.major.version>2.12</scala.major.version>
     </properties>