ci: Use compatible perl images

See Perl/docker-perl#161

CPAN Release 0.89

- Recognise core booleans on Perl 5.36+ at dump time (PR#114 PEVANS++)

CPAN Release 0.88_001

- Recognise core booleans on Perl 5.36+ at dump time (PR#114 PEVANS++)

CPAN Release 0.88

- REVERT "Turn off internal POK flag for number scalars"

CPAN Release 0.87

- Turn off internal POK flag for number scalars

CPAN Release 0.86_001

- Turn off interal POK flag for number scalars

CPAN Release 0.86

- Fix YAML::XS pod in cpanminus