partial Revert "fix: use bunx --bun for drizzle-kit to ensure .env.local #5142

Job	Run time
build-and-check	2m 42s
test-common	40s
test-cli	3m 47s
test-integration-packages/agent-runtime	42s
test-npm-app	43s
test-integration-.agents	1m 10s
test-backend	39s
test-packages/internal	42s
test-integration-web	50s
test-integration-npm-app	43s
test-integration-cli	42s
test-sdk	47s
test-packages/billing	44s
test-integration-common	39s
test-.agents	38s
test-integration-packages/internal	38s
test-integration-packages/billing	42s
test-web	41s
test-integration-sdk	1m 2s
test-integration-backend	56s
test-packages/agent-runtime	49s
	20m 56s

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