Publish on OpenVSX as well to enable VSCodium Support

As noted here:
https://github.com/VSCodium/vscodium/issues/337

> Please note that VSCodium now sources its extensions from https://open-vsx.org (the open-source vendor-neutral vscode extensions registry) because Microsoft's own marketplace is closed-source and has a restrictive proprietary license.
> And, while most common/popular extensions are already available on OpenVSX, it's still very new and a few extensions may be missing. If that's the case, you can:
> politely ask the extension maintainers to consider publishing to OpenVSX (they only need to run one command: npx ovsx publish, without installing anything), or
> add it to OpenVSX's own automated publishing CI for open-source extensions: https://github.com/open-vsx/publish-extensions

Would it be possible to publish to OpenVSX to enable use of this extension on VSCodium as well?

Review the extension's existing packaging or publishing entry point and the OpenVSX guidance linked in the issue; no repository file or test is named. Confirm the extension can be published to OpenVSX and becomes available for VSCodium.

Written by the indexing model from the issue text.