build(gradle): add foojay toolchain resolver convention plugin

Adds the Gradle Toolchains Foojay Resolver plugin to enable automatic JDK
downloads and toolchain management, allowing the project to specify required
JDK versions without manual installation.

.gitea/workflows/build.yml

@@ -203,6 +203,7 @@ jobs:
           plugins {
             id("com.facebook.react.settings")
             id("expo-autolinking-settings")
+            id("org.gradle.toolchains.foojay-resolver-convention") version "0.5.0"
           }
           
           extensions.configure(com.facebook.react.ReactSettingsExtension) { ex ->