bibutils: 6.3 -> 6.5

Semi-automatic update generated by https://github.com/ryantm/nixpkgs-update tools.

This update was made based on information from https://repology.org/metapackage/bibutils/versions.

These checks were done:

- built on NixOS
- /nix/store/cxpy0qdlx26bpkwfvxp77hjj89lkcg0n-bibutils-6.5/bin/bib2xml passed the binary check.
- /nix/store/cxpy0qdlx26bpkwfvxp77hjj89lkcg0n-bibutils-6.5/bin/biblatex2xml passed the binary check.
- /nix/store/cxpy0qdlx26bpkwfvxp77hjj89lkcg0n-bibutils-6.5/bin/copac2xml passed the binary check.
- /nix/store/cxpy0qdlx26bpkwfvxp77hjj89lkcg0n-bibutils-6.5/bin/end2xml passed the binary check.
- /nix/store/cxpy0qdlx26bpkwfvxp77hjj89lkcg0n-bibutils-6.5/bin/endx2xml passed the binary check.
- /nix/store/cxpy0qdlx26bpkwfvxp77hjj89lkcg0n-bibutils-6.5/bin/isi2xml passed the binary check.
- /nix/store/cxpy0qdlx26bpkwfvxp77hjj89lkcg0n-bibutils-6.5/bin/med2xml passed the binary check.
- /nix/store/cxpy0qdlx26bpkwfvxp77hjj89lkcg0n-bibutils-6.5/bin/nbib2xml passed the binary check.
- /nix/store/cxpy0qdlx26bpkwfvxp77hjj89lkcg0n-bibutils-6.5/bin/ris2xml passed the binary check.
- /nix/store/cxpy0qdlx26bpkwfvxp77hjj89lkcg0n-bibutils-6.5/bin/ebi2xml passed the binary check.
- /nix/store/cxpy0qdlx26bpkwfvxp77hjj89lkcg0n-bibutils-6.5/bin/wordbib2xml passed the binary check.
- /nix/store/cxpy0qdlx26bpkwfvxp77hjj89lkcg0n-bibutils-6.5/bin/xml2ads passed the binary check.
- /nix/store/cxpy0qdlx26bpkwfvxp77hjj89lkcg0n-bibutils-6.5/bin/xml2bib passed the binary check.
- /nix/store/cxpy0qdlx26bpkwfvxp77hjj89lkcg0n-bibutils-6.5/bin/xml2end passed the binary check.
- /nix/store/cxpy0qdlx26bpkwfvxp77hjj89lkcg0n-bibutils-6.5/bin/xml2isi passed the binary check.
- /nix/store/cxpy0qdlx26bpkwfvxp77hjj89lkcg0n-bibutils-6.5/bin/xml2ris passed the binary check.
- /nix/store/cxpy0qdlx26bpkwfvxp77hjj89lkcg0n-bibutils-6.5/bin/xml2wordbib passed the binary check.
- /nix/store/cxpy0qdlx26bpkwfvxp77hjj89lkcg0n-bibutils-6.5/bin/modsclean passed the binary check.
- 18 of 18 passed binary check by having a zero exit code.
- 0 of 18 passed binary check by having the new version present in output.
- found 6.5 with grep in /nix/store/cxpy0qdlx26bpkwfvxp77hjj89lkcg0n-bibutils-6.5
- directory tree listing: https://gist.github.com/7adb4b0732974e1615ff601aa185fe77
- du listing: https://gist.github.com/87e8d1fe8d3ee6c61fc25435cc5c5c54