Fix ruff E501 (line-too-long) errors

[afuetterer]

$ ruff check rdmo_plugins
rdmo_plugins/exports/datacite.py:359:121: E501 Line too long (126 > 120)
rdmo_plugins/exports/datacite.py:360:121: E501 Line too long (122 > 120)
rdmo_plugins/exports/datacite.py:415:121: E501 Line too long (121 > 120)
rdmo_plugins/exports/datacite.py:422:121: E501 Line too long (133 > 120)
rdmo_plugins/exports/datacite.py:425:121: E501 Line too long (135 > 120)
rdmo_plugins/exports/datacite.py:437:121: E501 Line too long (131 > 120)
rdmo_plugins/exports/datacite.py:473:121: E501 Line too long (166 > 120)
rdmo_plugins/exports/madmp.py:248:121: E501 Line too long (142 > 120)
rdmo_plugins/exports/madmp.py:302:121: E501 Line too long (153 > 120)
rdmo_plugins/exports/madmp.py:319:121: E501 Line too long (125 > 120)
rdmo_plugins/exports/madmp.py:341:121: E501 Line too long (134 > 120)
rdmo_plugins/exports/madmp.py:422:121: E501 Line too long (124 > 120)
rdmo_plugins/exports/radar/mixins.py:178:121: E501 Line too long (124 > 120)
rdmo_plugins/exports/radar/mixins.py:233:121: E501 Line too long (130 > 120)
rdmo_plugins/exports/radar/mixins.py:252:121: E501 Line too long (137 > 120)
rdmo_plugins/exports/radar/mixins.py:261:121: E501 Line too long (126 > 120)
rdmo_plugins/exports/radar/mixins.py:278:121: E501 Line too long (122 > 120)
rdmo_plugins/exports/radar/mixins.py:358:121: E501 Line too long (140 > 120)
rdmo_plugins/exports/radar/mixins.py:376:121: E501 Line too long (121 > 120)
rdmo_plugins/exports/radar/mixins.py:377:121: E501 Line too long (127 > 120)
rdmo_plugins/exports/radar/mixins.py:378:121: E501 Line too long (124 > 120)
rdmo_plugins/exports/radar/mixins.py:381:121: E501 Line too long (126 > 120)
rdmo_plugins/exports/radar/mixins.py:385:121: E501 Line too long (125 > 120)
rdmo_plugins/exports/radar/renderers.py:78:121: E501 Line too long (125 > 120)
rdmo_plugins/exports/radar/renderers.py:80:121: E501 Line too long (129 > 120)
rdmo_plugins/exports/radar/renderers.py:153:121: E501 Line too long (122 > 120)
rdmo_plugins/imports/datacite.py:83:121: E501 Line too long (139 > 120)
rdmo_plugins/imports/datacite.py:86:121: E501 Line too long (127 > 120)
rdmo_plugins/imports/datacite.py:91:121: E501 Line too long (153 > 120)
rdmo_plugins/imports/datacite.py:93:121: E501 Line too long (123 > 120)
rdmo_plugins/imports/datacite.py:97:121: E501 Line too long (131 > 120)
rdmo_plugins/imports/datacite.py:100:121: E501 Line too long (121 > 120)
rdmo_plugins/imports/datacite.py:107:121: E501 Line too long (125 > 120)
rdmo_plugins/imports/datacite.py:110:121: E501 Line too long (125 > 120)
rdmo_plugins/imports/datacite.py:176:121: E501 Line too long (130 > 120)
rdmo_plugins/imports/datacite.py:208:121: E501 Line too long (121 > 120)
rdmo_plugins/imports/datacite.py:278:121: E501 Line too long (122 > 120)
rdmo_plugins/imports/datacite.py:324:121: E501 Line too long (122 > 120)
rdmo_plugins/imports/datacite.py:414:121: E501 Line too long (122 > 120)
rdmo_plugins/imports/datacite.py:421:121: E501 Line too long (124 > 120)
rdmo_plugins/imports/datacite.py:493:121: E501 Line too long (122 > 120)
rdmo_plugins/imports/radar.py:83:121: E501 Line too long (139 > 120)
rdmo_plugins/imports/radar.py:86:121: E501 Line too long (127 > 120)
rdmo_plugins/imports/radar.py:91:121: E501 Line too long (153 > 120)
rdmo_plugins/imports/radar.py:93:121: E501 Line too long (123 > 120)
rdmo_plugins/imports/radar.py:97:121: E501 Line too long (131 > 120)
rdmo_plugins/imports/radar.py:100:121: E501 Line too long (121 > 120)
rdmo_plugins/imports/radar.py:107:121: E501 Line too long (125 > 120)
rdmo_plugins/imports/radar.py:110:121: E501 Line too long (125 > 120)
rdmo_plugins/imports/radar.py:118:121: E501 Line too long (122 > 120)
rdmo_plugins/imports/radar.py:121:121: E501 Line too long (127 > 120)
rdmo_plugins/imports/radar.py:200:121: E501 Line too long (127 > 120)
rdmo_plugins/imports/radar.py:232:121: E501 Line too long (121 > 120)
rdmo_plugins/imports/radar.py:267:121: E501 Line too long (122 > 120)
rdmo_plugins/imports/radar.py:302:121: E501 Line too long (122 > 120)
rdmo_plugins/imports/radar.py:348:121: E501 Line too long (122 > 120)
rdmo_plugins/imports/radar.py:436:121: E501 Line too long (122 > 120)
rdmo_plugins/imports/radar.py:443:121: E501 Line too long (124 > 120)
rdmo_plugins/imports/radar.py:534:121: E501 Line too long (122 > 120)
Found 59 errors.