gdcm: 2.8.6 -> 2.8.7 (#42708)

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

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

These checks were done:

- built on NixOS
- /nix/store/b5k2wcykj6s3j1rax851vpzyj6amqpvk-gdcm-2.8.7/bin/gdcm2vtk passed the binary check.
- /nix/store/b5k2wcykj6s3j1rax851vpzyj6amqpvk-gdcm-2.8.7/bin/gdcmviewer passed the binary check.
- Warning: no invocation of /nix/store/b5k2wcykj6s3j1rax851vpzyj6amqpvk-gdcm-2.8.7/bin/gdcm2pnm had a zero exit code or showed the expected version
- /nix/store/b5k2wcykj6s3j1rax851vpzyj6amqpvk-gdcm-2.8.7/bin/gdcmdump passed the binary check.
- Warning: no invocation of /nix/store/b5k2wcykj6s3j1rax851vpzyj6amqpvk-gdcm-2.8.7/bin/gdcmdiff had a zero exit code or showed the expected version
- /nix/store/b5k2wcykj6s3j1rax851vpzyj6amqpvk-gdcm-2.8.7/bin/gdcmraw passed the binary check.
- /nix/store/b5k2wcykj6s3j1rax851vpzyj6amqpvk-gdcm-2.8.7/bin/gdcmscanner passed the binary check.
- /nix/store/b5k2wcykj6s3j1rax851vpzyj6amqpvk-gdcm-2.8.7/bin/gdcmanon passed the binary check.
- /nix/store/b5k2wcykj6s3j1rax851vpzyj6amqpvk-gdcm-2.8.7/bin/gdcmgendir passed the binary check.
- /nix/store/b5k2wcykj6s3j1rax851vpzyj6amqpvk-gdcm-2.8.7/bin/gdcmimg passed the binary check.
- /nix/store/b5k2wcykj6s3j1rax851vpzyj6amqpvk-gdcm-2.8.7/bin/gdcmconv passed the binary check.
- /nix/store/b5k2wcykj6s3j1rax851vpzyj6amqpvk-gdcm-2.8.7/bin/gdcmtar passed the binary check.
- /nix/store/b5k2wcykj6s3j1rax851vpzyj6amqpvk-gdcm-2.8.7/bin/gdcminfo passed the binary check.
- /nix/store/b5k2wcykj6s3j1rax851vpzyj6amqpvk-gdcm-2.8.7/bin/gdcmscu passed the binary check.
- Warning: no invocation of /nix/store/b5k2wcykj6s3j1rax851vpzyj6amqpvk-gdcm-2.8.7/bin/gdcmxml had a zero exit code or showed the expected version
- /nix/store/b5k2wcykj6s3j1rax851vpzyj6amqpvk-gdcm-2.8.7/bin/gdcmpap3 passed the binary check.
- 13 of 16 passed binary check by having a zero exit code.
- 0 of 16 passed binary check by having the new version present in output.
- found 2.8.7 with grep in /nix/store/b5k2wcykj6s3j1rax851vpzyj6amqpvk-gdcm-2.8.7
- directory tree listing: https://gist.github.com/d4d202ac57e29b5fe6d46f1e8b7b112b
- du listing: https://gist.github.com/7244757ac1449adb1adde3c480e77c8d