Manual: claim compatibility with Octave 9.1.0

(cherry picked from commit 2b9c76f4)

doc/manual/source/installation-and-configuration.rst

@@ -15,7 +15,7 @@ compilation steps are necessary in that case.
 In order to run Dynare, you need one of the following:
 
 * MATLAB, any version ranging from 9.5 (R2018b) to 23.2 (R2023b);
-* GNU Octave, any version ranging from 7.1.0 to 8.4.0, with the ``statistics`` package
+* GNU Octave, any version ranging from 7.1.0 to 9.1.0, with the ``statistics`` package
   from `Octave-Forge`_. Note however that the Dynare installer for Windows
   requires a more specific version of Octave, as indicated on the download
   page.