Merge pull request #2876 from sissbruecker/feat/sauce-connect-5-support

feat(test-runner-saucelabs): add support for Sauce Connect 5

Author: bashmish

.changeset/perfect-lies-rush.md

@@ -0,0 +1,6 @@
+---
+'@web/test-runner-saucelabs': minor
+---
+
+Bump saucelabs to 9.0.0 and update test-runner-saucelabs to changes in the new version.
+The new version contains breaking changes, see the migration guide for more information: https://docs.saucelabs.com/secure-connections/sauce-connect-5/migrating/.