chore: add dependencyDashboardLabels to renovate.json (#582)

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Source-Link: googleapis/synthtool@5d3c52f

renovate.json

@@ -69,5 +69,8 @@
     }
   ],
   "semanticCommits": true,
-  "masterIssue": true
+  "dependencyDashboard": true,
+  "dependencyDashboardLabels": [
+    "type: process"
+  ]
 }

synth.metadata

@@ -4,7 +4,7 @@
       "git": {
         "name": ".",
         "remote": "https://github.com/googleapis/java-speech.git",
-        "sha": "3c7483eae48c3d36a4748ae4860e7d9d584e1d63"
+        "sha": "49a552d0f402d265b65ae66b450b2b86806059de"
       }
     },
     {
@@ -27,7 +27,7 @@
       "git": {
         "name": "synthtool",
         "remote": "https://github.com/googleapis/synthtool.git",
-        "sha": "09c59c20a4bf0daed1665af59035ff240fe356df"
+        "sha": "5d3c52f5db664eee9026db76b5bcb466f3a09ca9"
       }
     }
   ],