Flaky Test: TestRunSamples/auto-partition-queries

The automated dependency reviewer bot detected a flaky test failure in PR #843.

**Failed Test:** `TestRunSamples/auto-partition-queries`
**Failure Summary:** Failed to create instance on emulator due to connection reset by peer
**Workflow Run:** https://github.com/googleapis/go-sql-spanner/actions/runs/27455111527

**Log Excerpt:**
```text
]/usr/bin/git config --local gc.auto 0
samples (1.25.x) UNKNOWN STEP 2026-06-13T05:46:12.4690655Z ##[endgroup]
samples (1.25.x) UNKNOWN STEP 2026-06-13T05:46:12.4693544Z ##[group]Setting up auth
samples (1.25.x) UNKNOWN STEP 2026-06-13T05:46:12.4695710Z Removing SSH command configuration
samples (1.25.x) UNKNOWN STEP 2026-06-13T05:46:12.4698956Z [command]/usr/bin/git config --local --name-only --get-regexp core\.sshCommand
samples (1.25.x) UNKNOWN STEP 2026-06-13T05:46:12.4733551Z [command]/usr/bin/git submodule foreach --recursive sh -c "git config --local --name-only --get-regexp 'core\.sshCommand' && git config --local --unset-all 'core.sshCommand' || :"
samples (1.25.x) UNKNOWN STEP 2026-06-13T05:46:12.5174948Z Removing HTTP extra header
samples (1.25.x) UNKNOWN STEP 2026-06-13T05:46:12.5181212Z [command]/usr/bin/git config --local --name-only --get-regexp http\.https\:\/\/github\.com\/\.extraheader
samples (1.25.x) UNKNOWN STEP 2026-06-13T05:46:12.5213378Z [command]/usr/bin/git submodule foreach --recursive sh -c "git config --local --name-only --get-regexp 'http\.https\:\/\/github\.com\/\.extraheader' && git config --local --unset-all 'http.https://github.com/.extraheader' || :"
samples (1.25.x) UNKNOWN STEP 2026-06-13T05:46:12.5423364Z Removing includeIf entries pointing to credentials config files
samples (1.25.x) UNKNOWN STEP 2026-06-13T05:46:12.5428902Z [command]/usr/bin/git config --local --name-only --get-regexp ^includeIf\.gitdir:
samples (1.25.x) UNKNOWN STEP 2026-06-13T05:46:12.5458668Z [command]/usr/bin/git submodule foreach --recursive git config --local --show-origin --name-only --get-regexp remote.origin.url
samples (1.25.x) UNKNOWN STEP 2026-06-13T05:46:12.5678737Z [command]/usr/bin/git config --file /home/runner/work/_temp/git-credentials-d286fa30-132a-4d29-853b-a05318e45108.config http.https://github.com/.extraheader AUTHORIZATION: basic ***
samples (1.25.x) UNKNOWN STEP 2026-06-13T05:46:12.5714419Z [command]/usr/bin/git config --local includeIf.gitdir:/home/runner/work/go-sql-spanner/go-sql-spanner/.git.path /home/runner/work/_temp/git-credentials-d286fa30-132a-4d29-853b-a05318e45108.config
samples (1.25.x) UNKNOWN STEP 2026-06-13T05:46:12.5743239Z [command]/usr/bin/git config --local includeIf.gitdir:/home/runner/work/go-sql-spanner/go-sql-spanner/.git/worktrees/*.path /home/runner/work/_temp/git-credentials-d286fa30-132a-4d29-853b-a05318e45108.config
samples (1.25.x) UNKNOWN STEP 2026-06-13T05:46:12.5775446Z [command]/usr/bin/git config --local includeIf.gitdir:/github/workspace/.git.path /github/runner_temp/git-credentials-d286fa30-132a-4d29-853b-a05318e45108.config
samples (1.25.x) UNKNOWN STEP 2026-06-13T05:46:12.5807107Z [command]/usr/bin/git config --local includeIf.gitdir:/github/workspace/.git/worktrees/*.path /github/runner_temp/git-credentials-d286fa30-132a-4d29-853b-a05318e45108.config
samples (1.25.x) UNKNOWN STEP 2026-06-13T05:46:12.5840654Z ##[endgroup]
samples (1.25.x) UNKNOWN STEP 2026-06-13T05:46:12.5842182Z ##[group]Fetching the repository
samples (1.25.x) UNKNOWN STEP 2026-06-13T05:46:12.5849062Z [command]/usr/bin/git -c protocol.version=2 fetch --no-tags --prune --no-recurse-submodules --depth=1 origin +e081503d255f88d86262237a115c5d6131f4ed8f:refs/remotes/pull/843/merge
samples (1.25.x) UNKNOWN STEP 2026-06-13T05:46:13.2347508Z From https://github.com/googleapis/go-sql-spanner
samples (1.25.x) UNKNOWN STEP 2026-06-13T05:46:13.2351914Z * [new ref] e081503d255f88d86262237a115c5d6131f4ed8f -> pull/843/merge
samples (1.25.x) UNKNOWN STEP 2026-06-13T05:46:13.2411254Z ##[endgroup]
samples (1.25.x) UNKNOWN STEP 2026-06-13T05:46:13.2413796Z ##[group]Determining the checkout info
samples (1.25.x) UNKNOWN STEP 2026-06-13T05:46:13.2416949Z ##[endgroup]
samples (1.25.x) UNKNOWN STEP 2026-06-13T05:46:13.2419114Z [command]/usr/bin/git sparse-checkout disable
samples (1.25.x) UNKNOWN STEP 2026-06-13T05:46:13.2465280Z [command]/usr/bin/git config --local --unset-all extensions.worktreeConfig
samples (1.25.x) UNKNOWN STEP 2026-06-13T05:46:13.2494464Z ##[group]Checking out the ref
samples (1.25.x) UNKNOWN STEP 2026-06-13T05:46:13.2497819Z [command]/usr/bin/git checkout --progress --force refs/remotes/pull/843/merge
samples (1.25.x) UNKNOWN STEP 2026-06-13T05:46:13.2852735Z Note: switching to 'refs/remotes/pull/843/merge'.
samples (1.25.x) UNKNOWN STEP 2026-06-13T05:46:13.2854104Z
samples (1.25.x) UNKNOWN STEP 2026-06-13T05:46:13.2855260Z You are in 'detached HEAD' state. You can look around, make experimental
samples (1.25.x) UNKNOWN STEP 2026-06-13T05:46:13.2859208Z changes and commit them, and you can discard any commits you make in this
samples (1.25.x) UNKNOWN STEP 2026-06-13T05:46:13.2863103Z state without impacting any branches by switching back to a branch.
samples (1.25.x) UNKNOWN STEP 2026-06-13T05:46:13.2865609Z
samples (1.25.x) UNKNOWN STEP 2026-06-13T05:46:13.2867363Z If you want to create a new branch to retain commits you create, you may
samples (1.25.x) U
```

This issue was automatically created by the dependency reviewer bot.