Optimization: Don't check browser version when driver version was passed to webdriver-manager

[aleksandr-kotlyar]

What

webdriver-manager could never cover all cases of getting installed browser version.

Why

because there are a lot of possibilities to install them on different machines.

Solution

Don't check browser version if driver version was passed manually to webdriver-manager.

Details

Solution details how it should be

webdriver version set manually

If you have set driver version for any manager and browser:

from webdriver_manager.chrome import ChromeDriverManager

ChromeDriverManager(version='83.0.4103').install()

then webdriver-manager doesn't check anything and just downloads the version of webdriver you provided to manager.

webdriver version not set - "latest" used

If version hasn't been set for

• ChromeDriverManager
• EdgeChromiumDriverManager

then webdriver-manager checks browser's version of GoogleChrome, Chromium, MSEdge and downloads latest webdriver for this version.

If browser version is still UNKNOWN:

• Download latest release version of webdriver.

If version hasn't been set for

• IEDriverManager
• GeckoDriverManager
• OperaDriverManager

then webdriver-manager doesn't check browser's version of IE, Firefox, Opera and download the most latest webdriver.

P.S. Downloading version="latest" can still not match the installed browser version, then better to pass the right webdriver version to the webdriver-manager that matches the installed browser version.

[aleksandr-kotlyar]

Aslo it will fix #251, and partially help with #193 and #205 issues when browser is installed somewhere on agents.