How to install Postfix 3.7.4 or newer (ex: 3.8.3) on AlmaLinux 9.2

I’m facing an issue with Postfix and OpenSSL 3 (link) which was fixed on Postfix 3.7.4.

In my AlmaLinux 9.2 installation, the most recent version available is 3.5.9 (the one that is installed on our system), but I saw that newer versions may be available on development channels (link).

How could I access those development repositories?
(at least for postfix package in particular)

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