Revert "Bump major version to v29"

[gmlewis]

Reverts #1344 due to breaking the build.

[gmlewis]

Merging to fix build. I'll address v29 later tonight. Sorry for all the noise. :-(

[dmitshur]

No problem @gmlewis, thank you for taking care of this.

I believe the issue in PR #1344 was that it did not update the recently added example/topics/main.go file, it still imports "github.com/google/go-github/v28/github" instead of "github.com/google/go-github/v29/github": https://github.com/google/go-github/blob/v29.0.0/example/topics/main.go#L15.

After we fix this, we'll need to pick a new version number, because v29.0.0 has already been published. Perhaps v29.0.1, since this will be fixing up a minor problem.

[gmlewis]

Ah, thank you for the analysis, @dmitshur !
I'm going to try and remedy it now.
(I deleted the v29.0.0 if that makes any difference.)

[dmitshur]

(I deleted the v29.0.0 if that makes any difference.)

That version has already been indexed and added to the Go checksum database, so we still won't be able to publish the same module version with different content without it causing a mismatch in the hash.