Bug#1074271: amgcl: needs rebuild for Python 3.12 as default

[Graham Inggs]

Control: reopen -1

Since an i386 build of amgcl was uploaded previously, it being missing
now is considered a regression.  Please see amgcl's excuses [1].

Migration status for amgcl (1.4.3-5 to 1.4.3-6): BLOCKED: Maybe
temporary, maybe blocked but Britney is missing information (check
below)
Issues preventing migration:

* missing build on i386

* arch:i386 not built yet, autopkgtest delayed there

Please build and upload the i386 binaries, or if they are no longer
relevant, please request their removal by the ftpmasters.


[1] https://qa.debian.org/excuses.php?package=amgcl