bundles/icinga2: fix dependencies for svc_systemd:icinga2

icinga2 runs fine without any checks, so we now only depend on the other
configuration files managed by bw. This will also fix unwanted
dependencies, because 'file:' means *all* files, not only those provided
by this bundle. In the past, it wasn't possible to skip any file,
because that would result in icinga not properly restarting.

bundles/icinga2/items.py

@@ -260,14 +260,22 @@ for feature in ENABLED_FEATURES:
         },
     }
 
+icinga_run_deps = {
+    'pkg_apt:icinga2',
+    'pkg_apt:icinga2-ido-pgsql',
+}
+for name in actions.keys():
+    icinga_run_deps.add(f'action:{name}')
+for name in directories.keys():
+    icinga_run_deps.add(f'directory:{name}')
+for name in files.keys():
+    icinga_run_deps.add(f'file:{name}')
+for name in symlinks.keys():
+    icinga_run_deps.add(f'symlink:{name}')
+
 svc_systemd = {
     'icinga2': {
-        'needs': {
+        'needs': icinga_run_deps,
-            'action:icinga2_api_setup',
-            'file:',
-            'pkg_apt:',
-            'symlink:',
-        },
     },
     'icinga_statusmonitor': {
         'needs': {