fix(test-runner): show suites for summaryReporter({ flatten: true })

[bennypowers]

What I did

1. make the summary reporter list the suite names when flatten is true

Before:

✓ imperatively instantiates [Chromium]
✓ should upgrade [Chromium]
✓ should be hidden on init [Chromium]
✓ should not be accessible [Chromium]
✓ should be visible [Chromium]
✓ should be accessible [Chromium]
✓ should focus the component [Chromium]
✓ should be visible [Chromium]
✓ should be accessible [Chromium]
✓ should focus the component [Chromium]
✓ should be hidden [Chromium]
✓ should be visible [Chromium]
✓ should be hidden on init [Chromium]
✓ should be visible [Chromium]
✓ should have a label of "Back to top" [Chromium]
✓ should have a label of "Back to top" [Chromium]
✓ should have a label of "Return to top" [Chromium]
✓ should have a label of "Return to top" [Chromium]

After:

✓  <pf-back-to-top> imperatively instantiates [Chromium]
✓  <pf-back-to-top> simply instantiating should upgrade [Chromium]
✓  <pf-back-to-top> when rendered in a viewport with a height smaller then content length should be hidden on init [Chromium]
✓  <pf-back-to-top> when rendered in a viewport with a height smaller then content length should not be accessible [Chromium]
✓  <pf-back-to-top> when rendered in a viewport with a height smaller then content length when scrolled 401px should be visible [Chromium]
✓  <pf-back-to-top> when rendered in a viewport with a height smaller then content length when scrolled 401px should be accessible [Chromium]
✓  <pf-back-to-top> when rendered in a viewport with a height smaller then content length when scrolled 401px pressing the tab key should focus the component [Chromium]
✓  <pf-back-to-top> when rendered in a viewport with a height smaller then content length when the always visible property is true should be visible [Chromium]
✓  <pf-back-to-top> when rendered in a viewport with a height smaller then content length when the always visible property is true should be accessible [Chromium]
✓  <pf-back-to-top> when rendered in a viewport with a height smaller then content length when the always visible property is true pressing the tab key should focus the component [Chromium]
✓  <pf-back-to-top> when rendered in a viewport with a height smaller then content length when the scroll distance is set to 1000 should be hidden [Chromium]
✓  <pf-back-to-top> when rendered in a viewport with a height smaller then content length when the scroll distance is set to 1000 when scrolled 1001px should be visible [Chromium]
✓  <pf-back-to-top> when rendered in an element with an overflowed height should be hidden on init [Chromium]
✓  <pf-back-to-top> when rendered in an element with an overflowed height when scrolled 401px should be visible [Chromium]
✓  <pf-back-to-top> when no text is provided as a link when scrolled should have a label of "Back to top" [Chromium]
✓  <pf-back-to-top> when no text is provided as a button when scrolled should have a label of "Back to top" [Chromium]
✓  <pf-back-to-top> when a label is provided as a link when scrolled should have a label of "Return to top" [Chromium]
✓  <pf-back-to-top> when a label is provided as a button when scrolled should have a label of "Return to top" [Chromium]

[changeset-bot[bot]]

🦋 Changeset detected

Latest commit: 938a2e1407a5a27f721cf40fe3e36e23319fb9d8

The changes in this PR will be included in the next version bump.

This PR includes changesets to release 1 package

| Name | Type | | ---------------- | ----- | | @web/test-runner | Patch |

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