apk: Fix failure when both install and upgrade in same command (#26666)

* apk: Fix failure when both install and upgrade in same command

If name list contains an installed package that needs upgrade plus a new package, apk command would fail due to missing space character.

* Simplify fix by concatenating lists

lib/ansible/modules/packaging/os/apk.py

@@ -242,7 +242,7 @@ def install_packages(module, names, state):
         upgrade = True
     if not to_install and not upgrade:
         module.exit_json(changed=False, msg="package(s) already installed")
-    packages = " ".join(to_install) + " ".join(to_upgrade)
+    packages = " ".join(to_install + to_upgrade)
     if upgrade:
         if module.check_mode:
             cmd = "%s add --upgrade --simulate %s" % (APK_PATH, packages)