\documentclass{article}
\usepackage[margin=55mm]{geometry}
\usepackage[esperanto]{babel}
\usepackage[font = {small, sf}, labelfont = bf,
singlelinecheck = off]{caption}
\usepackage{tabularray}
\usepackage{tblr-extras}
\UseTblrLibrary{booktabs,  caption, babel}

\usepackage{lipsum}

\begin{document}
	\begin{longtblr}[
		caption = {My Table Title},
		label = {tab:test},
		]{colspec = {@{} X[j] @{}}}
		\toprule
		\lipsum[1] \\
		\midrule
		\lipsum[1] \\
		\lipsum[1] \\
		\bottomrule
	\end{longtblr}
\end{document}