Add Zulip topic for the funding team and MiRs

[Kobzol]

We will invite maintainers in residence to this stream, so that they can discuss various internal funding and reporting topics with the Funding team.

The channel already exists and the rust lang owner is a member of it.

[github-actions]

Dry-run check results

[WARN  rust_team::sync] sync-team is running in dry mode, no changes will be applied.
[INFO  rust_team::sync] synchronizing crates-io
[INFO  rust_team::sync] synchronizing github
[INFO  rust_team::sync] 💻 Repo Diffs:
    📝 Editing repo 'rust-lang/futures-rs':
      Environments:
        ❌ Delete: copilot
    📝 Editing repo 'rust-lang/regex':
      Environments:
        ❌ Delete: copilot
    📝 Editing repo 'rust-lang/rust':
      Environments:
        ❌ Delete: copilot