Observation of the <inline-formula><tex-math id="M1">\begin{document}${\boldsymbol X(2370)}$\end{document}</tex-math></inline-formula> in <inline-formula><tex-math id="M2">\begin{document}${{\boldsymbol J}/\boldsymbol\psi\rightarrow\gamma K^{0}_{S}K^{0}_{S}\pi^{0}}$\end{document}</tex-math></inline-formula> and <inline-formula><tex-math id="M3">\begin{document}${J/\psi\rightarrow\gamma \pi^{0}\pi^{0}\eta}$\end{document}</tex-math></inline-formula>

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