Marking command line arguments options as InternalSubpluginOptions

[cdsap]

We described in #1359 a cache issue when using Ksp with the Room processor since version 1.8.10-1.0.9.

After reviewing the code, we have noticed that since this version all the values of the internal property options are set as CompilerPluginConfig for the KspTasks.

kspTask.pluginOptions.add(
                project.provider {
                    CompilerPluginConfig().apply {
                        (kspTask as KspTask).options.get().forEach {
                            addPluginArgument(KSP_PLUGIN_ID, it)
                        }
                    }
                }
            )

Later, KGP will populate the inputs arguments like:

result["$subpluginId." + option.key + indexSuffix] = option.value

At this point, KGP doesn't know about the path sensitivity of the argument value producing different build cache keys:

(notice the argument com.google.devtools.ksp.symbol-processing.apoption:room.schemaLocation)

This PR updates the type of subplugin option for the CommandLineArgumentProviders as InternalSubpluginOption because this type of Subplugin does not track these values as inputs and they should instead already be tracked via the CommandLineArgumentProvider.

Tests

Ksp
https://ge.solutions-team.gradle.com/c/jeca5opi7c6lo/cfxcrcoqv7v46/task-inputs?cacheability=cacheable

Using InternalSubpluginOption
https://ge.solutions-team.gradle.com/c/sxmggqn6mwihu/3drfct4q2zqqk/task-inputs?cacheability=cacheable

[neetopia]

Taking a look..

[neetopia]

Thanks for the PR, Looks good to me, will merge after CI is completed!