fix: Renovate node version regex (#2731)

## Proposed change

fix: Renovate node version regex

<!--
Please include a summary of the changes and the related issue.
Please also include relevant motivation and context.
-->

## Related issues

<!--
Please make sure to follow the [contribution
guidelines](https://github.com/amadeus-digital/Otter/blob/main/CONTRIBUTING.md)
-->

*- No issue associated -*

<!-- * 🐛 Fix #issue -->
<!-- * 🐛 Fix resolves #issue -->
<!-- * 🚀 Feature #issue -->
<!-- * 🚀 Feature resolves #issue -->
<!-- *  Pull Request #issue -->

tools/renovate/managers/github-node-version.json5

@@ -13,7 +13,7 @@
         "(^|/)action\\.ya?ml$"
       ],
       "matchStrings": [
-        "node-version: (?<currentValue>.+?)\\s"
+        "node-version: (?<currentValue>[0-9a-zA-Z-.]+)"
       ],
       "depNameTemplate": "node",
       "datasourceTemplate": "node-version",