Tag for updated Docker image

What's Changed

• Implemented root dir variable for graphnet by @MortenHolmRep in #370
• Limit awkward-array version, due to breaking changes by @asogaard in #376
• Support macOS installation by @asogaard in #377
• Dataconverter fix by @RasmusOrsoe in #383
• Allow for selection=None in make_train_validation_dataloader by @asogaard in #384
• Restructure examples by @asogaard in #378
• Update Docker image by @asogaard in #387

Full Changelog: v0.2.3...v0.2.4