There is an updated pull request by tsndqst against master on the void-packages repository

https://github.com/tsndqst/void-packages gns3-2.2.27
https://github.com/void-linux/void-packages/pull/34057

GNS3: upgrade to 2.2.27
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This change upgrades gns3-server and gns3-gui to 2.2.27.  It also updates requirements to work latest python3-Jinja2 package.

#### Testing the changes
- I tested the changes in this PR: **YES**

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A patch file from https://github.com/void-linux/void-packages/pull/34057.patch is attached