Add dep_type to resultdb cipd package.

Bug: None
Change-Id: I749267ade541960f7e50873e0b83d1703c1b0141
Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/236584
Commit-Queue: Mirko Bonadei <mbonadei@webrtc.org>
Commit-Queue: Christoffer Jansson <jansson@google.com>
Reviewed-by: Christoffer Jansson <jansson@google.com>
Cr-Commit-Position: refs/heads/main@{#35278}
diff --git a/DEPS b/DEPS
index c864acc..7bfd647 100644
--- a/DEPS
+++ b/DEPS
@@ -110,6 +110,7 @@
         'version': Var('resultdb_version'),
       },
     ],
+    'dep_type': 'cipd',
   },
 
   'src/third_party/android_build_tools/aapt2': {