gitignore: ignore .vscode folder in main repo

Signed-off-by: Valerio Setti <valerio.setti@nordicsemi.no>
diff --git a/.gitignore b/.gitignore
index 4f29d5b..12c775d 100644
--- a/.gitignore
+++ b/.gitignore
@@ -67,3 +67,6 @@
 compile_commands.json
 # clangd index files
 /.cache/clangd/index/
+
+# VScode folder to store local debug files and configurations
+.vscode