wallet-connections: Bump version and fix release workflow

[bisgardo]

Purpose

Fix CI workflow for releasing package.

Changes

Workflow:

• Build NPM package pack-file using npm pack instead of zipping manually and upload that.
• Prepare for releasing that file using npm publish (is currently dry-run as the repo doesn't have the credentials). This will be added later, either in this workflow or a separate one that triggers on a release being created (or manually).
• Use new action bisgardo/github-action-echo to define variables in a way that's much nicer than explicitly echoing to a file.

Additionally, the wallet-conections version was bumped and will be released when this is merged.

[bisgardo]

Verified that the github release is created with the expected notes and artifacts.