Fix: Revert to ubuntu base image for adept_loan_mgt

[bcliang]

From #13, the Dockerfile missed copying the utility software for managing ADE loans (adept_loan_mgt) over from the builder image. After inclusion, the utility was present but not functional due to uncaught segmentation faults. For now, I wasn't able to resolve the errors.

This PR reverts the release container back to ubuntu jammy. The alpine flavor will continue to be built by the github action (including the compiled adept_loan_mgt utility), but the segmentation fault issues remain unresolved.

Fixes:

• Add the adept_loan_mgt utility to the published container

Changes:

• Dockerfiles for both ubuntu and alpine
• Update github action to build both ubuntu and alpine images
• Pull latest master from mainline (currently tagged to 0.8.4):
  • improved HTTP response handling
  • some OS-specific changes for windows / android)

Side-effect:

• The extracted container size has increased due to the base image (19.5MB vs. 88.3MB)