style: ensure newlines at the end of each file

scripts/generate-license-files.js

@@ -55,4 +55,4 @@ await generateLicenseFile(
     './THIRD_PARTY_LICENSES_DEV'
 );
 
-await fs.rename(packageJsonBackup, packageJson);
+await fs.rename(packageJsonBackup, packageJson);

scripts/setup.ps1

@@ -14,4 +14,4 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 
-git config --local commit.template .gitmessage
+git config --local commit.template .gitmessage

scripts/setup.sh

@@ -14,4 +14,4 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 
-git config --local commit.template .gitmessage
+git config --local commit.template .gitmessage