fix: issue with dynamic inputs when selecting model

[erichare]

This pull request fixes an issue with the dynamic model selection in Astra DB Component

[Cristhianzl]

lgtm

[codspeed-hq]

CodSpeed Performance Report

Merging #4538 will degrade performances by 14.27%

_{Comparing bugfix-astra-db-inputs (23d2ec8) with main (0dc6cce)}

Summary

⚡ 2 improvements
❌ 1 regressions
✅ 12 untouched benchmarks

⚠️ Please fix the performance issues or acknowledge them on CodSpeed.

Benchmarks breakdown

	Benchmark	main	bugfix-astra-db-inputs	Change
⚡	test_invalid_run_with_input_type_chat	16.6 ms	13.8 ms	+20.56%
⚡	test_successful_run_with_input_type_any	543.2 ms	455 ms	+19.4%
❌	test_successful_run_with_input_type_text	455.9 ms	531.8 ms	-14.27%