chore: update .gitignore to include tgz files in repo root (#220)

update .gitignore to include tgz files in repo root

Author: a-klos

.gitignore

@@ -2,12 +2,8 @@
 
 **/.env.langfuse
 **/.nx/*
-*.tgz
 **/_poetry
 */Chart.lock
-helm-chart/charts/admin-backend-0.0.1.tgz
-helm-chart/charts/adminfrontend-0.0.1.tgz
-helm-chart/charts/rag-0.0.1.tgz
 pyrightconfig.json
 notes*.md
 notes.md