feat: Add Milvus vector database (#4)

.changeset/tasty-hairs-wait.md

e2e/utils.ts

helpers/env-variables.ts

helpers/python.ts

helpers/types.ts

helpers/typescript.ts

index.ts

questions.ts

templates/components/vectordbs/python/milvus/__init__.py

templates/components/vectordbs/python/milvus/generate.py

templates/components/vectordbs/python/milvus/index.py

...lates/components/vectordbs/typescript/milvus/generate.mjs

templates/components/vectordbs/typescript/milvus/index.ts

templates/components/vectordbs/typescript/milvus/shared.mjs

templates/types/simple/express/src/observability/index.ts