Allow inferring the version from Gradle when using config cache.

Oddly it seems to work now, not sure what issue I was having before.

Closes #57

src/main/kotlin/me/modmuss50/mpp/ModPublishExtension.kt

@@ -14,14 +14,11 @@ import org.gradle.api.ExtensiblePolymorphicDomainObjectContainer
 import org.gradle.api.NamedDomainObjectProvider
 import org.gradle.api.PolymorphicDomainObjectContainer
 import org.gradle.api.Project
-import org.gradle.api.configuration.BuildFeatures
 import org.gradle.api.file.RegularFileProperty
 import org.gradle.api.provider.Property
 import org.gradle.api.provider.Provider
 import org.gradle.api.tasks.TaskProvider
-import java.lang.IllegalStateException
 import java.nio.file.Path
-import javax.inject.Inject
 import kotlin.reflect.KClass
 
 abstract class ModPublishExtension(val project: Project) : PublishOptions {
@@ -33,9 +30,6 @@ abstract class ModPublishExtension(val project: Project) : PublishOptions {
     abstract val dryRun: Property<Boolean>
     val platforms: ExtensiblePolymorphicDomainObjectContainer<Platform> = project.objects.polymorphicDomainObjectContainer(Platform::class.java)
 
-    @get:Inject
-    protected abstract val buildFeatures: BuildFeatures
-
     init {
         dryRun.convention(false)
         maxRetries.convention(3)
@@ -217,11 +211,6 @@ abstract class ModPublishExtension(val project: Project) : PublishOptions {
 
     // Returns the project version as a string, or throws if not set.
     private fun getProjectVersion(): String {
-        // TODO remove this when there is a config caching friendly way to get the version
-        if (buildFeatures.getConfigurationCache().getActive().get()) {
-            throw IllegalStateException("Cannot infer project version when configuration cache, please set the version explicitly in the publishMods block.")
-        }
-
         val version = project.version
 
         if (version == Project.DEFAULT_VERSION) {

src/test/kotlin/me/modmuss50/mpp/test/modrinth/ModrinthTest.kt

@@ -50,9 +50,9 @@ class ModrinthTest : IntegrationTest {
         val result = gradleTest()
             .buildScript(
                 """
+                version = "1.0.0"
                 publishMods {
                     changelog = "Hello!"
-                    version = "1.0.0"
                     type = BETA
                 
                     // Common options that can be re-used between diffrent modrinth tasks