Fix Test Configuration and Improve Binary Resolution in Linera

[dinitheth]

Motivation

Proposal

Test Plan

Release Plan

• Nothing to do / These changes follow the usual release cycle.
• These changes should be backported to the latest devnet branch, then
  • be released in a new SDK,
  • be released in a validator hotfix.
• These changes should be backported to the latest testnet branch, then
  • be released in a new SDK,
  • be released in a validator hotfix.
• Backporting is not possible but we may want to deploy a new devnet and release a new
  SDK soon.

Links

• reviewer checklist