The upstream stops updating their source code

[proletarius101]

According to https://github.com/lensapp/lens/blob/01a4a9856e05e2f6ca2f49530f0efd8d7339235e/README.md, the open-source code of Lens is no longer maintained by the upstream.

Previously, this repository contained the source code for the open source version of Lens Desktop product. The open source version of Lens Desktop has been retired and is no longer maintained. The Lens Desktop product by Mirantis is still actively developed and supported by Mirantis, but contributions are now made through extensions using the Lens extension API, rather than directly to the core product. The legacy source code for the open source version is still available in the repository's 'master'-branch.

This Flatpak will keep tracing the master upstream branch until it's no longer useful.