Deprecate armhf

[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:

Deprecate Arch armhf image due to Calibre dropping 32-bit support for v6.

Merge after Arch bumps their package to v6 - https://archlinux.org/packages/?sort=&q=calibre&maintainer=&flagged=

Benefits of this PR and context:

How Has This Been Tested?

Source / References:

[LinuxServer-CI]

I am a bot, here are the test results for this PR: https://ci-tests.linuxserver.io/lspipepr/calibre/arch-5a0df66e-pkg-5a0df66e-pr-93/index.html https://ci-tests.linuxserver.io/lspipepr/calibre/arch-5a0df66e-pkg-5a0df66e-pr-93/shellcheck-result.xml

[LinuxServer-CI]

I am a bot, here are the test results for this PR: https://ci-tests.linuxserver.io/lspipepr/calibre/arch-5a0df66e-pkg-5a0df66e-pr-93/index.html https://ci-tests.linuxserver.io/lspipepr/calibre/arch-5a0df66e-pkg-5a0df66e-pr-93/shellcheck-result.xml

[LinuxServer-CI]

I am a bot, here are the test results for this PR: https://ci-tests.linuxserver.io/lspipepr/calibre/arch-79d7ec5e-pkg-79d7ec5e-pr-93/index.html https://ci-tests.linuxserver.io/lspipepr/calibre/arch-79d7ec5e-pkg-79d7ec5e-pr-93/shellcheck-result.xml