Set swoval.tmpdir with absolute path via globalBasePath (#5048)

Fixes https://github.com/sbt/sbt/issues/5047

When setting swoval.tmpdir via globalBase, changed to set globalBase as absolute path.

`com.swoval.runtime.NativeLoader.loadPackaged` uses `java.lang.System.load`.
It requires absolute path, so we should set `swoval.tmpdir` with absolute path.

main/src/main/scala/sbt/internal/Load.scala

@@ -100,7 +100,10 @@ private[sbt] object Load {
     val delegates = defaultDelegates
     val pluginMgmt = PluginManagement(loader)
     val inject = InjectSettings(injectGlobal(state), Nil, const(Nil))
-    System.setProperty("swoval.tmpdir", System.getProperty("swoval.tmpdir", globalBase.toString))
+    System.setProperty(
+      "swoval.tmpdir",
+      System.getProperty("swoval.tmpdir", globalBase.getAbsolutePath.toString)
+    )
     LoadBuildConfiguration(
       stagingDirectory,
       classpath,

notes/1.3.0/set-swovalpath-with-absolutepath.md

@@ -0,0 +1,8 @@
+[@yamachu]: https://github.com/yamachu
+
+[#5047]: https://github.com/sbt/sbt/issues/5047
+[#5048]: https://github.com/sbt/sbt/pull/5048
+
+### Bug Fixes
+
+- Enable file watching when setting relative path to sbt.global.base [#5047][5047]/[#5048][5048] by [@yamachu][@yamachu]