feat: Add node language version

[hofbi]

Closes #2460

This avoids that pre-commit picks the latest node version available that might not be supported by renovate. Users can still override this if they want.

[jonesbusy]

What about

language_version: lts

It will ensure to stay on LTS instead of unsupported active version

[hofbi]

@jonesbusy did not know that this feature existed. Do you know that this works? Do you have any example/documentation where this is mentioned?

[viceice]

needs updated renovate config as mentioned in issue.

is this a fixed version or can we use a range? will that version automatically downloaded?

[jonesbusy]

https://pre-commit.com/#overriding-language-version

The language_version is passed directly to the underlying tool. In that case nodeenv

I've just tested

nodeenv --node=lts .test
 * Install prebuilt node (22.12.0) ..... done.

[hofbi]

Changed to lts.

@viceice what would have to be changed in the renovate config?

[viceice]

does it support setting the major version only? because renovate sometimes doesn't support the newest lts for some time.

[jonesbusy]

Apparently not

I tried without success

nodeenv --node=22.x .test
nodeenv --node=22 .test

[hofbi]

Being said that you don't always support the latest LTS version, we might want to explicitly specify the node version to be used. This way, you can explicitly define what should be used and is supported.

If this becomes to much manual effort, maybe renovate can autoupdate this as well. WDYT @viceice.