Fix semgrep and add Dockerfile

.semgrep.yml

@@ -1,2 +1,2 @@
 rules:
-  - p/java
+  - p/java

Dockerfile

@@ -0,0 +1,8 @@
+FROM eclipse-temurin:17-jre
+
+WORKDIR /app
+COPY build/libs/*.jar app.jar
+
+EXPOSE 8080
+
+ENTRYPOINT ["java","-jar","app.jar"]