Ensures that /root/.m2 is pre-populated

If the local maven repository, the `/root/.m2` directory in this case, is empty, then the first time that `mvn` runs a plugin, such as `org.cyclonedx:cyclonedx-maven-plugin:makeAggregateBom` or `com.corgibytes:versions-maven-plugin:resolve-ranges-historical`, then the `mvn` process downloads all of the dependencies and stores them in the local repository. This can create problems if there are two instances of `mvn` running at the same time, both attempting to download the same files, but at different times. By forcing the two plugins that are run by `freshli-agent-java` to run on a minimal `pom.xml` file while the container is being built, this change ensures that the `/root/.m2` directory is populated. Hopefully, this means that the `mvn` process won't need to download those files, and instead will just run using the copies that are already stored locally. This will avoid issues with having two instances of `mvn` running at the same time.

Dockerfile

@@ -68,6 +68,18 @@ ENV MAVEN_HOME /usr/share/maven
 ENV MAVEN_CONFIG "$USER_HOME_DIR/.m2"
 RUN mkdir -p $MAVEN_CONFIG
 
+# Bootstrap contents of .m2 directory
+RUN mkdir /root/bootstrap
+RUN echo "<project> \
+    <groupId>com.corgibytes</groupId> \
+    <artifactId>freshli-java-bootstrap</artifactId> \
+    <version>1.0</version> \
+    <modelVersion>4.0.0</modelVersion> \
+</project>" > /root/bootstrap/pom.xml
+RUN cd /root/bootstrap && \
+    mvn org.cyclonedx:cyclonedx-maven-plugin:makeAggregateBom && \
+    mvn com.corgibytes:versions-maven-plugin:resolve-ranges-historical
+
 # Copy `freshli` executable from the `dotnet_build` image
 RUN mkdir -p /usr/local/share/freshli
 COPY --from=dotnet_build /app/freshli/exe/ /usr/local/share/freshli/