feat(icons): add ldap-account-manager (#1356)

Co-authored-by: Dashboard Icons Manager <193821040+dashboard-icons-manager[bot]@users.noreply.github.com>

tree.json

@@ -996,6 +996,7 @@
         "lark.png",
         "lastpass.png",
         "lazylibrarian.png",
+        "ldap-account-manager.png",
         "leanote.png",
         "leantime.png",
         "lemmy-light.png",
@@ -5078,6 +5079,7 @@
         "lark.webp",
         "lastpass.webp",
         "lazylibrarian.webp",
+        "ldap-account-manager.webp",
         "leanote.webp",
         "leantime.webp",
         "lemmy-light.webp",