drone: allow build to use more CPUs

.drone.yml

@@ -36,6 +36,13 @@ steps:
 
   - name: goreleaser
     image: golang:1.16.7
+    resources:
+      requests:
+        cpu: 3000
+        memory: 512MiB
+      limits:
+        cpu: 6000
+        memory: 2048MiB
     volumes:
       - name: cache
         path: /go