Bump unrar to 6.2.10

[thespad]

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• [x] I have read the contributing guideline and understand that I have made the correct modifications

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Description:

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How Has This Been Tested?

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[LinuxServer-CI]

I am a bot, here are the test results for this PR: https://ci-tests.linuxserver.io/lspipepr/flexget/v3.8.4-pkg-3cf31503-dev-5eb0e6290e17c03fbbafc11b12b6fb24d3220891-pr-5/index.html https://ci-tests.linuxserver.io/lspipepr/flexget/v3.8.4-pkg-3cf31503-dev-5eb0e6290e17c03fbbafc11b12b6fb24d3220891-pr-5/shellcheck-result.xml	Tag	Passed
amd64-v3.8.4-pkg-3cf31503-dev-5eb0e6290e17c03fbbafc11b12b6fb24d3220891-pr-5	✅
arm64v8-v3.8.4-pkg-3cf31503-dev-5eb0e6290e17c03fbbafc11b12b6fb24d3220891-pr-5	✅