chore: bump version to 2.0.0

Release version 2.0.0 with peer discovery improvements:
- Limited peer responses to 25 peers with randomization
- Disabled PEER_DISCOVERY by default for mainnet
- Enabled PEER_DISCOVERY for preprod environments only

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude <noreply@anthropic.com>

Author: Mateusz Czeladka

pom.xml

@@ -26,7 +26,7 @@
     </licenses>
 
     <properties>
-        <revision>2.0.0-beta</revision>
+        <revision>2.0.0</revision>
         <java.version>24</java.version>
         <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
         <version.spring-boot>3.5.0</version.spring-boot>