fix(ci): add missing nightly upgrade workflow

[Kewe63]

Summary

Fixes #324

This adds the missing .github/workflows/nightly-upgrade.yml workflow referenced by scripts/run-upgrade-test.sh.

Previously, the script generated a GitHub CLI command targeting nightly-upgrade.yml:

gh workflow run nightly-upgrade.yml -R circlefin/arc-node --ref main ...

but .github/workflows/nightly-upgrade.yml did not exist, so the generated command pointed to a missing workflow.

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Changes

• Add .github/workflows/nightly-upgrade.yml.
• Expose workflow_dispatch inputs expected by scripts/run-upgrade-test.sh:
  • from_version
  • to_version
  • hardfork
• Add optional manual-run parameters:
  • load_duration
  • load_rate
• Run scripts/scenarios/nightly-upgrade.sh from the workflow.
• Prepare a temporary scenario TOML with image version overrides before running the scenario.
• Upload target/test-results as a workflow artifact when available.

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Why

scripts/run-upgrade-test.sh is intended to trigger the nightly upgrade workflow remotely with image version overrides. The workflow file needs to exist and accept the same inputs the script sends; otherwise dry-run output looks valid but the actual gh workflow run command cannot succeed.

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Verification

Script syntax:

bash -n scripts/run-upgrade-test.sh

Result:

passed

Dry-run command:

bash scripts/run-upgrade-test.sh --remote origin --dry-run --from 0.7.3-dev --to 0.8.0-dev --hardfork zero8

Result:

gh workflow run nightly-upgrade.yml -R circlefin/arc-node --ref main -f from_version=0.7.3-dev -f to_version=0.8.0-dev -f hardfork=zero8

Workflow existence check:

test -f .github/workflows/nightly-upgrade.yml

Result:

passed

Input/reference check:

.github/workflows/nightly-upgrade.yml exists and exposes expected inputs

Formatting:

npx prettier --config ./.prettierrc --check .github/workflows/nightly-upgrade.yml scripts/scenarios/README.md

Result:

All matched files use Prettier code style!

Whitespace check:

git diff --check

Result:

passed

---

Notes

This PR restores the workflow target that scripts/run-upgrade-test.sh already expects. The workflow keeps the script-facing input names unchanged so existing dry-run and remote trigger usage continue to work.

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Checklist

• Script syntax and dry-run output verified
• Workflow file exists and exposes expected inputs
• Prettier clean, git diff --check clean
• Follows Conventional Commits
• Changes scoped to this fix only

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Risk & Impact

None to low. Purely additive — adds the missing workflow file the script already expected; no existing workflow, script logic, or input names are changed. scripts/run-upgrade-test.sh requires no changes since it already targeted this workflow name and these input names.

Type: 🐛 Bug fix
Fixes: #324