CI flake: Smoketests (Windows) - could not find git.exe

[clockwork-labs-bot]

Detected by CI Gremlin after a failed merge-queue run succeeded in a later merge-queue run without a new PR head commit.

Tests:

• Smoketests (Windows)

Error:
fatal: couldn't find remote ref refs/heads/gh-readonly-queue/master/pr-5243-2161148e8af4050c74d3419c7a71d62c3131f88f
The process 'C:\Program Files\Git\cmd\git.exe' failed with exit code 128

Failed job runs:

• https://github.com/clockworklabs/SpacetimeDB/actions/runs/27477572490/job/81221727895 (Smoketests (Windows), attempt merge queue run 27477572490 -> merge queue run 27478430750)

Context:

• Merge queue PR: docs: improve docs and agent discovery metadata #5243
• PR head SHA: 2161148
• Later successful run: https://github.com/clockworklabs/SpacetimeDB/actions/runs/27478430750

[bfops]

I honestly don't know how to debug this. this looks like a potential github failure or something