meta: add dependencies label to label-pr-config

PR-URL: #42129
Reviewed-By: Michaël Zasso <targos@protonmail.com>
Reviewed-By: Darshan Sen <raisinten@gmail.com>
Reviewed-By: Luigi Pinca <luigipinca@gmail.com>
Reviewed-By: Anto Aravinth <anto.aravinth.cse@gmail.com>
Reviewed-By: James M Snell <jasnell@gmail.com>

.github/label-pr-config.yml

@@ -85,7 +85,7 @@ subSystemLabels:
   /^deps\/nghttp2\//: http2
   /^deps\/ngtcp2\//: quic, dont-land-on-v14.x, dont-land-on-v12.x
   /^deps\/nghttp3\//: quic, dont-land-on-v14.x, dont-land-on-v12.x
-  /^deps\/([^/]+)/: $1
+  /^deps\/([^/]+)/: dependencies, $1
 
   ## JS subsystems
   # Oddities first