Do not run protoc tasks in parallel

Otherwise if the format task changes the underlying files, it will make
fail the other tasks.

  task: [protoc:breaking-change-detection] buf breaking --against '.git#branch=origin/master,subdir=rpc'
  task: [protoc:format] buf format --write --exit-code
  task: [protoc:check] buf lint
  task: [protoc:compile] buf dep update
  Failure: context canceled
  Failure: context canceled
  Failure: context canceled
  exit status 100

Author: cmaglie

Taskfile.yml

@@ -228,11 +228,11 @@ tasks:
 
   protoc:
     desc: Lint, format and compile protobuf definitions
-    deps:
-      - protoc:check
-      - protoc:format
-      - protoc:compile
-      - protoc:breaking-change-detection
+    cmds:
+      - task: protoc:format
+      - task: protoc:check
+      - task: protoc:compile
+      - task: protoc:breaking-change-detection
 
   protoc:compile:
     desc: Compile protobuf definitions