chore: update version to 2.0.0-beta

Update version in pom.xml and example Docker commands in README.md from 2.0.0 to 2.0.0-beta.

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

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

Author: Mateusz Czeladka

README.md

@@ -186,12 +186,12 @@ Check [environment variable reference](https://cardano-foundation.github.io/card
 
 ### Check Network Status
 ```bash
-    docker run --name rosetta -v {CUSTOM_MOUNT_PATH}:/node --env-file ./docker/.env.dockerfile --env-file ./docker/.env.docker-profile-mid-level -p 8082:8082 --shm-size=4g -d cardanofoundation/cardano-rosetta-java:2.0.0
+    docker run --name rosetta -v {CUSTOM_MOUNT_PATH}:/node --env-file ./docker/.env.dockerfile --env-file ./docker/.env.docker-profile-mid-level -p 8082:8082 --shm-size=4g -d cardanofoundation/cardano-rosetta-java:2.0.0-beta
 ```
 
 ### Get Account Balance
 ```bash
-    docker run --name rosetta -v {CUSTOM_MOUNT_PATH}:/node --env-file ./docker/.env.dockerfile --env-file ./docker/.env.docker-profile-mid-level -p 8090:8090 -p 8082:8082 --shm-size=4g -d cardanofoundation/cardano-rosetta-java:2.0.0
+    docker run --name rosetta -v {CUSTOM_MOUNT_PATH}:/node --env-file ./docker/.env.dockerfile --env-file ./docker/.env.docker-profile-mid-level -p 8090:8090 -p 8082:8082 --shm-size=4g -d cardanofoundation/cardano-rosetta-java:2.0.0-beta
 ```
 
 ### Submit Transaction

pom.xml

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