chore: update the default value and docs to show currently available …

…devices (bitrise-steplib#28)

* chore: update the default value and docs to show currently available devices

* updates device list

Update device list (bitrise-steplib#24)

* Update maintenance_test.go

* Update step.yml (bitrise-steplib#25)

TOOL-1869 Pr/tarappo/18 (bitrise-steplib#20)

* update firebase test lab device info

* Updating device list test

* Updating default iOS version used to 12.3

Co-authored-by: tarappo <tarappo@gmail.com>

Update project_type_tags (bitrise-steplib#17)

Update meta format (bitrise-steplib#16)

Updating meta attribute in step.yml (bitrise-steplib#15)

Adding maintenance workflow (bitrise-steplib#14)

* Adding maintenance workflow

* Adding maintenance test

* dep update

* Ignore maintanence test, as it needs gcloud binary which is not available on macOS stack by default.

Fix testlab timeout limit exceeded (bitrise-steplib#12)

* validate testlab timeout limit max

* reflect testlab timeout max value

* update description with most recent timeout value

* proper handling of max timeout

- precise validation based on google docs
- fallback instead of failure if value exceeds max

* cr fix: add unit of measurement to var name

* cr fix: misleading function name

* pr fix: sync description with official docs

* pr fix: trim 's' from test timeout

* fix: accept inputs ending in s

* tests for test timeut format validation

* clean up: revert unneeded changes

* make description very clear

fix: properly order column values (bitrise-steplib#8)

* fix: properly order column values

* fix: undo bad fix and do proper fix

* fix: test result matrix column ordering