Dependabot fails to find npm version in pnpm workspaces and fails with tool_version_not_supported

[Yurickh]

Is there an existing issue for this?

• I have searched the existing issues

Package ecosystem

pnpm (npm_and_yarn)

Package manager version

9.15.4

Language version

Node.js 20.12.2

Manifest location and content before the Dependabot update

• packages/a/package.json
• packages/b/package.json

dependabot.yml content

• .github/dependabit.yml

Updated dependency

Irrelevant to the issue

What you expected to see, versus what you actually saw

I'd expect @dependabot recreate to work on the PR, but as you can see in the logs, it fails with tool_version_not_supported error due to being unable to find the npm version:

updater | 2025/01/21 13:21:19 INFO <job_951303522> Guessed version info "pnpm" : "9"
updater | 2025/01/21 13:21:19 INFO <job_951303522> Installed version for pnpm: 9.15.3
...
updater | 2025/01/21 13:21:22 INFO <job_951303522> Installed version for npm: 9.6.5
...
updater | 2025/01/21 13:21:22 ERROR <job_951303522> Dependabot detected the following npm requirement for your project: ''.

Native package manager behavior

It updates as normal.

Images of the diff or a link to the PR, issue, or logs

No response

Smallest manifest that reproduces the issue

All links in the issue are from a reproduction repro.

[Yurickh]

Seems to have been fixed as of today at least.