Update @vardot/varbase-e2e to 2.0.6

Problem/Motivation

The Varbase functional testing suite in this repository pins @vardot/varbase-e2e at ^2 in package.json, and package-lock.json currently resolves 2.0.4. Release 2.0.6 fixes three issues that hit this pipeline directly, which runs 18 parallel functional buckets including five Drupal Canvas editor buckets (10-01 to 10-05):

• #53 - the Canvas editor open step times out under load before its own retry loop can report.
• #58 - each smartSettle stage now gets its own share of the budget.
• #57 - smartSettle could wait forever: remaining() floors to 0 and Playwright reads a timeout of 0 as "no timeout".

Canvas editor timeouts under load are exactly the failure mode #53 describes, so this repository is a direct beneficiary.

Steps to reproduce

1. Check the resolved version: grep -A2 '"node_modules/@vardot/varbase-e2e"' package-lock.json - it reports 2.0.4.
2. Run the functional suite against a live Horizon Aid install under parallel load and watch the Canvas editor buckets time out on the editor open step.

Proposed resolution

• Refresh package-lock.json so the suite resolves @vardot/varbase-e2e 2.0.6.
• Tighten the package.json constraint from the open ^2 to a pin on the tested release line, so CI cannot silently drift onto an untested minor.
• Re-run the full functional suite against a live Horizon Aid install and confirm no regression, with particular attention to the five Canvas editor buckets and 12-search.

Remaining tasks

• ✅ File an issue
• ✅ Refresh the lockfile to 2.0.6 and tighten the constraint
• ✅ Run the full functional suite against a live install and report the numbers
• ✅ Open the merge request into 1.0.x
• ➖ Automated unit/functional testing coverage
• ➖ Developer Documentation support
• ➖ User Guide Documentation support
• ➖ UX/UI designer responsibilities
• ➖ Accessibility and Readability
• ❌ Reviewed by a human
• ❌ Code review by maintainers
• ❌ Full testing and approval
• ❌ Credit contributors
• ❌ Review with the product owner
• ✅ Update Release Notes
• ✅ Release

User interface changes

• N/A

API changes

• N/A

Data model changes

• N/A

Release notes snippet

• Updated the Varbase functional testing suite dependency @vardot/varbase-e2e to 2.0.6, picking up the Drupal Canvas editor and smart-wait timeout fixes.

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