Fix build errors in existing solutions

[rbergen]

Description

This PR addresses build errors in 4 existing solutions:

• Assembly/solution_1, Umple/solution_1 and Yoix/solution_1 started failing because the deprecated openjdk Docker Hub images that the solutions' Dockerfiles derived from are no longer available. I have switched these solutions to corresponding eclipse-temurin images instead.
• Mojo/solution_1 fails because the solution's code is no longer compatible with the version of Mojo that the Dockerfile installs. I have disabled the build and hence benchmark runs for this solution until a fix is provided; I have opened issue Mojo/solution_1 fails to build #1027 to request one.

Contributing requirements

• I read the contribution guidelines in CONTRIBUTING.md.
• I placed my solution in the correct solution folder.
• I added a README.md with the right badge(s).
• I added a Dockerfile that builds and runs my solution.
• I selected drag-race as the target branch.
• All code herein is licensed compatible with BSD-3.

[marghidanu]

LGTM