Bump simulator to 18.2.0

Use the latest simulator version 18.2.0.

JIRA: LIGHTY-244
Signed-off-by: tobias.pobocik <tobias.pobocik@pantheon.tech>

.github/workflows/lighty-rnc-app/simulator/Dockerfile

@@ -1,7 +1,7 @@
 FROM alpine:3.18.2 as clone
 RUN apk add git
 WORKDIR /netconf-simulator
-RUN git clone https://github.com/PANTHEONtech/lighty-netconf-simulator.git -b 18.1.0
+RUN git clone https://github.com/PANTHEONtech/lighty-netconf-simulator.git -b 18.2.0
 
 FROM maven:3.8-eclipse-temurin-17-alpine as build
 WORKDIR /lighty-netconf-simulator
@@ -14,4 +14,4 @@ COPY --from=build /lighty-netconf-simulator/examples/devices/lighty-network-topo
 
 EXPOSE 17380
 
-ENTRYPOINT ["java", "-jar", "/lighty-netconf-simulator/target/lighty-network-topology-device-18.1.0.jar"]
+ENTRYPOINT ["java", "-jar", "/lighty-netconf-simulator/target/lighty-network-topology-device-18.2.0.jar"]