Update action-gh-release to v3

[timtmok]

Fixes #1247

Maintenance to support node.js v24

Node.js 20 actions are deprecated. The following actions are running on Node.js 20 and may not work as expected: 1password/load-secrets-action@v3, aws-actions/configure-aws-credentials@v4. Actions will be forced to run with Node.js 24 by default starting June 2nd, 2026. Node.js 20 will be removed from the runner on September 16th, 2026. Please check if updated versions of these actions are available that support Node.js 24. To opt into Node.js 24 now, set the FORCE_JAVASCRIPT_ACTIONS_TO_NODE24=true environment variable on the runner or in your workflow file. Once Node.js 24 becomes the default, you can temporarily opt out by setting ACTIONS_ALLOW_USE_UNSECURE_NODE_VERSION=true. For more information see: https://github.blog/changelog/2025-09-19-deprecation-of-node-20-on-github-actions-runners/

We will need to update to continue using the runner. There's also setting ACTIONS_ALLOW_USE_UNSECURE_NODE_VERSION=true but that won't work on September 16, 2026.

This was addressed in Positron with https://github.com/posit-dev/positron-builds/pull/1018

[DavisVaughan]

LGTM other than one comment

[DavisVaughan]

i dont see any reason to lock ourselves to v3.0.0, can we just use the sliding v3 tag instead?

[timtmok]

Positron had previously locked to v2.0.5 since an update had regressed in some functionality (unable to update assets in a release). I think it'll be good to stick with a version we know works until we have a reason to update.

[DavisVaughan]

On the flip side any bugs that are fixed won't flow through to us (particularly anything security related).

But sure, I don't care too much