Format default-python template (#2110)

## Changes
Format code in default-python template, so it's already pre-formatted.

## Tests

```
$ databricks bundle init libs/template/templates/default-python
$ ruff format --diff my_project     
6 files already formatted
```

libs/template/templates/default-python/template/{{.project_name}}/scratch/exploration.ipynb.tmpl

@@ -29,7 +29,8 @@
    "source": [
    {{- if (eq .include_python "yes") }}
     "import sys\n",
-    "sys.path.append('../src')\n",
+    "\n",
+    "sys.path.append(\"../src\")\n",
     "from {{.project_name}} import main\n",
     "\n",
     "main.get_taxis(spark).show(10)"

libs/template/templates/default-python/template/{{.project_name}}/setup.py.tmpl

@@ -5,28 +5,32 @@ This file is primarily used by the setuptools library and typically should not
 be executed directly. See README.md for how to deploy, test, and run
 the {{.project_name}} project.
 """
+
 from setuptools import setup, find_packages
 
 import sys
-sys.path.append('./src')
+
+sys.path.append("./src")
 
 import datetime
 import {{.project_name}}
 
+local_version = datetime.datetime.utcnow().strftime("%Y%m%d.%H%M%S")
+
 setup(
     name="{{.project_name}}",
     # We use timestamp as Local version identifier (https://peps.python.org/pep-0440/#local-version-identifiers.)
     # to ensure that changes to wheel package are picked up when used on all-purpose clusters
-    version={{.project_name}}.__version__ + "+" + datetime.datetime.utcnow().strftime("%Y%m%d.%H%M%S"),
+    version={{.project_name}}.__version__ + "+" + local_version,
     url="https://databricks.com",
     author="{{user_name}}",
     description="wheel file based on {{.project_name}}/src",
-    packages=find_packages(where='./src'),
-    package_dir={'': 'src'},
+    packages=find_packages(where="./src"),
+    package_dir={"": "src"},
     entry_points={
         "packages": [
-            "main={{.project_name}}.main:main"
-        ]
+            "main={{.project_name}}.main:main",
+        ],
     },
     install_requires=[
         # Dependencies in case the output wheel file is used as a library dependency.

libs/template/templates/default-python/template/{{.project_name}}/src/dlt_pipeline.ipynb.tmpl

@@ -35,6 +35,7 @@
     "# Import DLT and src/{{.project_name}}\n",
     "import dlt\n",
     "import sys\n",
+    "\n",
     "sys.path.append(spark.conf.get(\"bundle.sourcePath\", \".\"))\n",
     "from pyspark.sql.functions import expr\n",
     "from {{.project_name}} import main"
@@ -71,6 +72,7 @@
     "    return spark.read.format(\"json\").load(\"/databricks-datasets/nyctaxi/sample/json/\")\n",
     {{end -}}
     "\n",
+    "\n",
     "@dlt.table\n",
     "def filtered_taxis():\n",
     "    return dlt.read(\"taxi_raw\").filter(expr(\"fare_amount < 30\"))"

libs/template/templates/default-python/template/{{.project_name}}/src/{{.project_name}}/main.py.tmpl

@@ -1,5 +1,6 @@
 from pyspark.sql import SparkSession, DataFrame
 
+
 def get_taxis(spark: SparkSession) -> DataFrame:
     return spark.read.table("samples.nyctaxi.trips")
 
@@ -10,12 +11,15 @@ def get_taxis(spark: SparkSession) -> DataFrame:
 def get_spark() -> SparkSession:
     try:
         from databricks.connect import DatabricksSession
+
         return DatabricksSession.builder.getOrCreate()
     except ImportError:
         return SparkSession.builder.getOrCreate()
 
+
 def main():
     get_taxis(get_spark()).show(5)
 
-if __name__ == '__main__':
+
+if __name__ == "__main__":
     main()