fix: 修复部分版本无法正确归一化的问题

[Mine-diamond]

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[Copilot]

Pull request overview

This PR fixes normalization issues for certain Minecraft game versions by adding support for lowercase variants and correcting capitalization.

• Adds lowercase variant aliases for 1.18 experimental snapshots 2-7
• Adds support for the previously missing 1.18 experimental snapshot 7
• Corrects the capitalization of version 22w13oneBlockAtATime in the versions list

Reviewed changes

Copilot reviewed 3 out of 3 changed files in this pull request and generated no comments.

File	Description
HMCLCore/src/test/java/org/jackhuang/hmcl/util/versioning/GameVersionNumberTest.java	Updated test cases to verify normalization of lowercase experimental snapshot names (2-7) and added test for 22w13oneblockatatime variant
HMCLCore/src/main/resources/assets/game/versions.txt	Corrected capitalization from 22w13oneblockatatime to 22w13oneBlockAtATime
HMCLCore/src/main/resources/assets/game/version-alias.csv	Added lowercase variant aliases for experimental snapshots 1-7 and added alias mapping for 22w13oneBlockAtATime

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