Improve our version tooling

- Add a check to ensure declared dependencies in the :core project, and
   those inherited from Minecraft are the same.
 - Compute the next Cobalt version, rather than specifying it manually.
 - Add the gradle versions plugin (and version catalog update), and
   update some versions.

projects/forge/build.gradle.kts

@@ -136,7 +136,8 @@ dependencies {
     implementation(project(":core")) { cct.exclude(this) }
 
     minecraftEmbed(libs.cobalt) {
-        jarJar.ranged(this, "[${libs.versions.cobalt.asProvider().get()},${libs.versions.cobalt.next.get()})")
+        val version = libs.versions.cobalt.get()
+        jarJar.ranged(this, "[$version,${getNextVersion(version)})")
     }
     minecraftEmbed(libs.jzlib) {
         jarJar.ranged(this, "[${libs.versions.jzlib.get()},)")