CI: migrate test-colima.sh to colima.bats

[AkihiroSuda]

Also updated to:

• use the latest Colima
• test port forwarding

[AkihiroSuda]

ping @lima-vm/reviewers This has been open for a month

[norio-nomura]

I don't understand the meaning of including colima's test in the PR merge conditions.

Previously, when my PR stopped passing only the colima test, I didn't know why the test failed from the log, and I didn't know why it healed on its own.

If some tests including colima do not pass in PR, the colima test will usually be fixed if other tests are fixed.
The problem is if only the colima test does not pass, and the current colima test does not provide enough information to find out the cause, and I think the investigation should be done by the colima project.

If the colima test is scheduled to run once a day in the master branch, we will notice that it is broken.
I think the colima test should be removed from the PR merge conditions.