Update library references

SqlRender -> 1.5.2
circe -> 1.6.0
featureExtraction -> 2.1.5

Set webapi.version -> 2.5.0

pom.xml

@@ -9,7 +9,7 @@
   <version>1.0.0-SNAPSHOT</version>
   <name>WebAPI</name>
   <properties>
-    <webapi.version>2.5.0-SNAPSHOT</webapi.version>
+    <webapi.version>2.5.0</webapi.version>
     <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
     <jersey.version>2.14</jersey.version>
     <!-- Spring Boot manages spring.version as well -->
@@ -427,7 +427,7 @@
     <dependency>
       <groupId>org.ohdsi.sql</groupId>
       <artifactId>SqlRender</artifactId>
-      <version>1.5.1-SNAPSHOT</version>
+      <version>1.5.2</version>
     </dependency>
     <dependency>
       <groupId>commons-dbutils</groupId>
@@ -566,7 +566,7 @@
     <dependency>
       <groupId>org.ohdsi</groupId>
       <artifactId>circe</artifactId>
-      <version>1.6.0-SNAPSHOT</version>
+      <version>1.6.0</version>
     </dependency>
     <dependency>
       <groupId>org.json</groupId>
@@ -576,7 +576,7 @@
     <dependency>
       <groupId>org.ohdsi</groupId>
       <artifactId>featureExtraction</artifactId>
-      <version>2.1.4</version>
+      <version>2.1.5</version>
     </dependency>
     <dependency>
       <groupId>com.amazon.redshift</groupId>