Fix archive tests to not create elasticsearch home (#47239)

The test for java home with special characters on linux would create a
temporary java home under /home/elasticsearch. But our packaging
assertions expect that to not exist. Unfortunately this would fail much
later when the checks were actually done in bats tests. This commit
fixes the linux test to match the behavior of windows, which links the
entire java directory, and now does it into a /tmp dir.

closes #45903

qa/os/src/test/java/org/elasticsearch/packaging/test/ArchiveTests.java

@@ -202,17 +202,11 @@ public void test53JavaHomeWithSpecialCharacters() throws Exception {
 
         Platforms.onLinux(() -> {
             final Shell sh = new Shell();
-            // Create temporary directory with a space and link to java binary.
-            // Use it as java_home
-            String testJavaHome = FileUtils.mkdir(Paths.get("/home", ARCHIVE_OWNER, "java home")).toAbsolutePath().toString();
+            // Create temporary directory with a space and link to real java home
+            String testJavaHome = Paths.get("/tmp", "java home").toString();
             try {
                 final String systemJavaHome = sh.run("echo $SYSTEM_JAVA_HOME").stdout.trim();
-                final String java = systemJavaHome + "/bin/java";
-
-                sh.run("mkdir -p \"" + testJavaHome + "/bin\"");
-                sh.run("ln -s \"" + java + "\" \"" + testJavaHome + "/bin/java\"");
-                sh.run("chown -R " + ARCHIVE_OWNER + ":" + ARCHIVE_OWNER + " \"" + testJavaHome + "\"");
-
+                sh.run("ln -s \"" + systemJavaHome + "\" \"" + testJavaHome + "\"");
                 sh.getEnv().put("JAVA_HOME", testJavaHome);
 
                 //verify ES can start, stop and run plugin list