Retry getting tabs in chrome launcher on ConnectionException

[annagrin]

Add more information and potentially resolve web_tool_tests flakes caused by failure to get a tab list from Chrome on launch.

• run flutter update-packages --force-upgrade to bring new package:webkit_inspection_protocol.dart and more.
• update ChromeLauncher to pass a retryFor duration so we try getting tabs for a couple of seconds.
• make ChromeLauncher.connect API available for testing.
• add tests for ChromeLauncher.connect.

Closes: #94886

Pre-launch Checklist

• [v] I read the [Contributor Guide] and followed the process outlined there for submitting PRs.
• [v] I read the [Tree Hygiene] wiki page, which explains my responsibilities.
• [v] I read and followed the [Flutter Style Guide], including [Features we expect every widget to implement].
• [v] I signed the [CLA].
• [v] I listed at least one issue that this PR fixes in the description above.
• [v] I updated/added relevant documentation (doc comments with ///).
• [v] I added new tests to check the change I am making, or this PR is [test-exempt].
• [v] All existing and new tests are passing.

[christopherfujino]

LGTM with 1 nit

[christopherfujino]

@annagrin marked "Google testing" green because the CL says pre-submits passed, I'm guessing this is a FRoB bug. This is good to go!

[annagrin]

@christopherfujino

marked "Google testing" green because the CL says pre-submits passed, I'm guessing this is a FRoB bug. This is good to go!

Thanks, they were failing of a reason at first - package:webkit_inspection_protocol needed to be updated - so I fixed it and rerun the tests (that's why they were showing as passing) but the CI did not detect it for some reason.