Add missing `.gitignore` to dbt-sql and default-sql templates (#2356)

## Changes

Added missing .gitignore files to templates

## Tests

There were some incorrect snapshots of gitignore files in acceptance
tests, probably generated by testing infra. Updated them to new files

---------

Co-authored-by: Lennart Kats (databricks) <lennart.kats@databricks.com>

acceptance/bundle/templates/dbt-sql/output/my_dbt_sql/out.gitignore

@@ -1,2 +1,15 @@
+# DABs
+.databricks/
+build/
+dist/
+__pycache__/
+*.egg-info
+.venv/
+scratch/**
+!scratch/README.md
 
-.databricks
+# dbt
+target/
+dbt_packages/
+dbt_modules/
+logs/

acceptance/bundle/templates/default-sql/output/my_default_sql/out.gitignore

@@ -1,2 +1,8 @@
-
+.databricks/
-.databricks
+build/
+dist/
+__pycache__/
+*.egg-info
+.venv/
+scratch/**
+!scratch/README.md

libs/template/templates/dbt-sql/template/{{.project_name}}/.gitignore

@@ -0,0 +1,15 @@
+# DABs
+.databricks/
+build/
+dist/
+__pycache__/
+*.egg-info
+.venv/
+scratch/**
+!scratch/README.md
+
+# dbt
+target/
+dbt_packages/
+dbt_modules/
+logs/

libs/template/templates/default-sql/template/{{.project_name}}/.gitignore

@@ -0,0 +1,8 @@
+.databricks/
+build/
+dist/
+__pycache__/
+*.egg-info
+.venv/
+scratch/**
+!scratch/README.md