Fix harness tests @ main

[priyawadhwa]

Failure on main: https://github.com/sigstore/rekor/runs/8255202947?check_suite_focus=true

git fetch origin isn't pulling in all version tags, it's only pulling up to v0.8.2. I wonder if it's because the remote is called something else. Instead of specifying the remote name, just pull in all tags.

From https://github.com/sigstore/rekor
 * [new branch]      add-tuf    -> origin/add-tuf
 * [new branch]      grpc       -> origin/grpc
 * [new branch]      swagger    -> origin/swagger
 * [new tag]         v0.1.0     -> v0.1.0
 * [new tag]         v0.1.1     -> v0.1.1
 * [new tag]         v0.2.0     -> v0.2.0
 * [new tag]         v0.3.0     -> v0.3.0
 * [new tag]         v0.4.0     -> v0.4.0
 * [new tag]         v0.5.0     -> v0.5.0
 * [new tag]         v0.6.0     -> v0.6.0
 * [new tag]         v0.[7](https://github.com/sigstore/rekor/runs/8255202947?check_suite_focus=true#step:6:8).0     -> v0.7.0
 * [new tag]         v0.[8](https://github.com/sigstore/rekor/runs/8255202947?check_suite_focus=true#step:6:9).0     -> v0.8.0
 * [new tag]         v0.8.1     -> v0.8.1
 * [new tag]         v0.8.2     -> v0.8.2
Also testing at HEAD at commit a6d36b8028ecdb4c047dde52b2[9](https://github.com/sigstore/rekor/runs/8255202947?check_suite_focus=true#step:6:10)a76b51b058b2f
v0.8.1 v0.8.2 a6d36b8028ecdb4c047dde52b29a76b51b058b2f

Signed-off-by: Priya Wadhwa priya@chainguard.dev

Summary

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