Update minecraft-data to version 0.20.4 🚀

[greenkeeperio-bot]

Hello :wave:

:rocket::rocket::rocket:

minecraft-data just published its new version 0.20.4, which is not covered by your current version range.

If this pull request passes your tests you can publish your software with the latest version of minecraft-data – otherwise use this branch to work on adaptions and fixes.

Happy fixing and merging :palm_tree:

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The new version differs by 16 commits .

• c0c0cf7 Release 0.20.4
• 17f4f4b update minecraft-data : 1.7 plugin channel data buffers are length-prefixed
• 30d6b8d Release 0.20.3
• bd7ef1e update mcdata : fix in 1.7 protocol
• 731f1e5 Release 0.20.2
• 2a061be update minecraft-data : a fix in the key of 1.7 protocol
• 2d4406c Release 0.20.1
• c7e05ec Release 0.20.0
• 8ba3ce5 Merge pull request #18 from deathcap/loadver
• 22f1f12 Merge pull request #19 from deathcap/mc17
• b5ff0e6 Add 1.7 data
• 25e35e2 Add 1.7 protocol support
• 50e900b Fix loading data by protocol version (1.9 snapshots ambiguity)
• c4acd0a Merge pull request #17 from deathcap/15w40b
• 2371b39 Update minecraft-data submodule for 15w40b

There are 16 commits in total. See the full diff.

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