pipelines: use lakeflow-pipelines template

Author: kanterov

acceptance/pipelines/init/error-cases/invalid_input.json

@@ -0,0 +1,3 @@
+{
+  "project_name": "InvalidProjectName"
+}

acceptance/pipelines/init/error-cases/output.txt

@@ -1,14 +1,4 @@
 
-=== Test with missing config file
->>> errcode [PIPELINES] init --output-dir output
-
-Welcome to the template for pipelines!
-
-
-Your new project has been created in the 'my_project' directory!
-
-Refer to the README.md file for "getting started" instructions!
-
 === Test with invalid project name (contains uppercase letters)
 >>> errcode [PIPELINES] init --config-file ./invalid_input.json --output-dir invalid-output
 Error: failed to load config from file ./invalid_input.json: invalid value for project_name: "InvalidProjectName". Name must consist of lower case letters, numbers, and underscores.