gha: fix typo in labeler config and quote (#351)

Signed-off-by: Matteo Mortari <[email protected]>

.github/labeler.yml

@@ -1,33 +1,33 @@
 "Area/UI":
 - changed-files:
-  - any-glob-to-any-file: clients/UI/**
+  - any-glob-to-any-file: "clients/ui/**"
 
 "Area/MR Python client":
 - changed-files:
-  - any-glob-to-any-file: clients/python/**
+  - any-glob-to-any-file: "clients/python/**"
 
 "Area/Go REST server":
 - changed-files:
   - any-glob-to-any-file:
-    - api/**
-    - cmd/**
-    - internal/**
-    - patches/**
-    - pkg/**
-    - templates/go-server/**
+    - "api/**"
+    - "cmd/**"
+    - "internal/**"
+    - "patches/**"
+    - "pkg/**"
+    - "templates/go-server/**"
 
 "Area/CSI":
 - changed-files:
-  - any-glob-to-any-file: csi/**
+  - any-glob-to-any-file: "csi/**"
 
 "Area/Manifests":
 - changed-files:
-  - any-glob-to-any-file: manifests/**
+  - any-glob-to-any-file: "manifests/**"
 
 "Area/Documentation":
 - changed-files:
-  - any-glob-to-any-file: docs/**
+  - any-glob-to-any-file: "docs/**"
 
 "Area/GitHub":
 - changed-files:
-  - any-glob-to-any-file: .github/**
+  - any-glob-to-any-file: ".github/**"