Provide Homebrew release of OSS version "tel2oss" of Telepresence

[tonur]

I have implemented a sample Homebrew formula for the "tel2oss" here: https://github.com/tonur/homebrew-telepresence-oss

Please describe your use case / problem.
Installing from a binary download link is not preferred, as the Telepresence install page for the standard release also suggests installation via brew.
My use case would be much improved if I could install the "tel2oss" version of Telepresence with such a command:
brew install datawire/blackbird/telepresence-oss

Describe the solution you'd like
Add the "tel2oss" as a separate Homebrew formula as part of the release build which currently uses packaging/homebrew-package.sh to only release the "tel2" standard version.

The best solution would be to host this Homebrew formula on a Datawire controlled repository, likely the current Homebrew tap location for this: https://github.com/datawire/homebrew-blackbird as a formula called "telepresence-oss".
As mentioned, this formula for the "tel2oss" can perhaps serve as inspiration: https://github.com/tonur/homebrew-telepresence-oss.
This requires changes to the packaging/homebrew-package.sh file to automate new releases.

Describe alternatives you've considered
Hosting the formula myself, but this is undesirable for other users, as a random Github users private repository is less trusted than the official Datawire controlled repository.

Versions (please complete the following information)

• Output of telepresence version (just in case the feature exists in future versions)

> telepresence version
OSS Client     : v2.18.0
OSS Root Daemon: v2.18.0
OSS User Daemon: v2.18.0
Traffic Manager: v2.17.0
Traffic Agent  : not currently available

• Kubernetes Environment and Version
  AKS Version 1.28

Additional context
This applies only to MacBook and perhaps Linux, as these are the only users of Homebrew.

[tonur]

I could try my luck at adding this feature by modifying the same files as in #3282.
I can make a Pull Request this afternoon, if this is something Telepresence/DataWire is okay with.