[PR #10285/3ab7a898 backport][stable-11] replace concatenations with f-string in plugins (#10290)

replace concatenations with f-string in plugins (#10285)

* replace concatenations with f-string in plugins

* add changelog frag

(cherry picked from commit 3ab7a898c6)

Co-authored-by: Alexei Znamensky <103110+russoz@users.noreply.github.com>

plugins/inventory/iocage.py

@@ -350,7 +350,7 @@ class InventoryModule(BaseInventoryPlugin, Constructable, Cacheable):
             for hostname, host_vars in results['_meta']['hostvars'].items():
                 iocage_hooks = []
                 for hook in hooks_results:
-                    path = "/" + iocage_pool + "/iocage/jails/" + hostname + "/root" + hook
+                    path = f"/{iocage_pool}/iocage/jails/{hostname}/root{hook}"
                     cmd_cat_hook = cmd.copy()
                     cmd_cat_hook.append('cat')
                     cmd_cat_hook.append(path)