fix: Fix compatibility with latest Selenium snapshots

[valfirst]

Change list

Fix compatibility with latest Selenium snapshots.

Types of changes

What types of changes are you proposing/introducing to Java client?

• No changes in production code.
• Bugfix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds functionality)
• Breaking change (fix or feature that would cause existing functionality to not work as expected)

Details

Recently Selenium team has introduced an update for Appium client adding ability to get additionalCommands in HttpCommandExecutor: SeleniumHQ/selenium@59aa1a0.
But since new method is public and the same Appium method in AppiumCommandExecutor.java is protected, this collision introduces an error at the build stage:

/Users/runner/work/java-client/java-client/src/main/java/io/appium/java_client/remote/AppiumCommandExecutor.java:136: error: getAdditionalCommands() in AppiumCommandExecutor cannot override getAdditionalCommands() in HttpCommandExecutor

    protected Map<String, CommandInfo> getAdditionalCommands() {
> Task :compileJava FAILED
                                       ^

[mykola-mokhnach]

I assume there we can safely delete this getter as it is public now in the parent class

[valfirst]

yes, we can, but it will bump the minimal Selenium client version to 4.28.0-SNAPSHOT, if it's ok, I'll do it

[mykola-mokhnach]

lets wait until 4.28 is released, so then we could also release a new minor version of java client and set the minimum version there

[mykola-mokhnach]

if this method is not used anymore then it would probably make sense to mark it deprecated