[7.x] Increase the time needed to locate the save viz toast (#89301)

[stratoula]

Backports the following commits to 7.x:

• Increase the time needed to locate the save viz toast ([Functional tests] Increase the time needed to locate the save viz toast #89301)

[stratoula]

@elasticmachine merge upstream

[kibanamachine]

💚 Build Succeeded

• continuous-integration/kibana-ci/pull-request
• Commit: e4cc4a9

Metrics [docs]

✅ unchanged

History

• 💔 Build #101453 failed e310620

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@elasticmachine merge upstream