python-astropy currently fails to build in Leap 15.5

We would like to have the build failure fixed until Leap 15.5 RC in April
See https://en.opensuse.org/openSUSE:Roadmap

The build log

https://build.opensuse.org/package/live_build_log/openSUSE:Backports:SLE-15-SP5/python-astropy/standard/x86_64

The error

[  206s] astropy/io/fits/src/compressionmodule.c: In function
���������configure_compression���������:
[  206s] astropy/io/fits/src/compressionmodule.c:739:19: error: ���������FITSfile {aka
struct <anonymous>}��������� has no member named ���������quantize_dither���������; did you mean
���������quantize_method���������?
[  206s]              Fptr->quantize_dither = SUBTRACTIVE_DITHER_1;
[  206s]                    ^~~~~~~~~~~~~~~
[  206s]                    quantize_method
[  206s] astropy/io/fits/src/compressionmodule.c:741:19: error: ���������FITSfile {aka
struct <anonymous>}��������� has no member named ���������quantize_dither���������; did you mean
���������quantize_method���������?
[  206s]              Fptr->quantize_dither = NO_DITHER;
[  206s]                    ^~~~~~~~~~~~~~~
[  206s]                    quantize_method
[  206s] astropy/io/fits/src/compressionmodule.c:744:15: error: ���������FITSfile {aka
struct <anonymous>}��������� has no member named ���������quantize_dither���������; did you mean
���������quantize_method���������?
[  206s]          Fptr->quantize_dither = NO_DITHER;
[  206s]                ^~~~~~~~~~~~~~~
[  206s]                quantize_method
[  206s] astropy/io/fits/src/compressionmodule.c:747:15: error: ���������FITSfile {aka
struct <anonymous>}��������� has no member named ���������quantize_dither���������; did you mean
���������quantize_method���������?
[  206s]      if (Fptr->quantize_dither != NO_DITHER) {
[  206s]                ^~~~~~~~~~~~~~~
[  206s]                quantize_method
[  206s] astropy/io/fits/src/compressionmodule.c:748:60: error: ���������FITSfile {aka
struct <anonymous>}��������� has no member named ���������dither_offset���������; did you mean
���������dither_seed���������?
[  206s]          switch (get_header_int(header, "ZDITHER0",
&(Fptr->dither_offset), 0, HDR_NOFLAG)) {
[  206s]                                                            
^~~~~~~~~~~~~
[  206s]                                                            
dither_seed
[  206s] astropy/io/fits/src/compressionmodule.c:753:19: error: ���������FITSfile {aka
struct <anonymous>}��������� has no member named ���������dither_offset���������; did you mean
���������dither_seed���������?
[  206s]              Fptr->dither_offset = 0;
[  206s]                    ^~~~~~~~~~~~~
[  206s]                    dither_seed
[  206s] astropy/io/fits/src/compressionmodule.c:754:19: error: ���������FITSfile {aka
struct <anonymous>}��������� has no member named ���������request_dither_offset���������; did you mean
���������request_dither_seed���������?
[  206s]              Fptr->request_dither_offset = 0;
[  206s]                    ^~~~~~~~~~~~~~~~~~~~~
[  206s]                    request_dither_seed
[  206s] astropy/io/fits/src/compressionmodule.c: In function
���������compression_compress_hdu���������:
[  206s] astropy/io/fits/src/compressionmodule.c:1073:16: warning: comparison
between signed and unsigned integer expressions [-Wsign-compare]
[  206s]      if (znaxis < outbufsize) {
[  206s]                 ^
[  206s] error: command 'gcc' failed with exit status 1
[  207s] error: Bad exit status from /var/tmp/rpm-tmp.pCrIiI (%build)
[  207s]