Update Gradle to 8.5

- Update FG to 6.0.20 - no major changes, but required for the Gradle
   update.
 - Update Loom to 1.5.x - this adds Vineflower support by default, so we
   can remove loom-vineflower.

gradle/libs.versions.toml

@@ -57,8 +57,8 @@ checkstyle = "10.12.6"
 curseForgeGradle = "1.0.14"
 errorProne-core = "2.23.0"
 errorProne-plugin = "3.1.0"
-fabric-loom = "1.3.9"
-forgeGradle = "6.0.8"
+fabric-loom = "1.5.7"
+forgeGradle = "6.0.20"
 githubRelease = "2.5.2"
 gradleVersions = "0.50.0"
 ideaExt = "1.1.7"
@@ -73,7 +73,6 @@ taskTree = "2.1.1"
 teavm = "0.10.0-SQUID.2"
 vanillaGradle = "0.2.1-SNAPSHOT"
 versionCatalogUpdate = "0.8.1"
-vineflower = "1.11.0"
 
 [libraries]
 # Normal dependencies
@@ -160,7 +159,6 @@ teavm-metaprogramming-impl = { module = "org.teavm:teavm-metaprogramming-impl",
 teavm-platform = { module = "org.teavm:teavm-platform", version.ref = "teavm" }
 teavm-tooling = { module = "org.teavm:teavm-tooling", version.ref = "teavm" }
 vanillaGradle = { module = "org.spongepowered:vanillagradle", version.ref = "vanillaGradle" }
-vineflower = { module = "io.github.juuxel:loom-vineflower", version.ref = "vineflower" }
 
 [plugins]
 forgeGradle = { id = "net.minecraftforge.gradle", version.ref = "forgeGradle" }

gradle/wrapper/gradle-wrapper.properties

@@ -1,6 +1,6 @@
 distributionBase=GRADLE_USER_HOME
 distributionPath=wrapper/dists
-distributionUrl=https\://services.gradle.org/distributions/gradle-8.1.1-bin.zip
+distributionUrl=https\://services.gradle.org/distributions/gradle-8.5-bin.zip
 networkTimeout=10000
 zipStoreBase=GRADLE_USER_HOME
 zipStorePath=wrapper/dists