Rebase to 3.21

[thespad]

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

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Description:

Needs linuxserver/docker-baseimage-alpine-nginx#175 before merging but will work for testing without it.

The TL;DR is I've moved all the certbot paths to /config so there's nothing being written to the container any more.

f2b is an exception, no clue how easy it would be to make that work without writing to the container fs but don't know it well enough to properly engineer a solution.

Benefits of this PR and context:

How Has This Been Tested?

I've done some basic testing an clean issuance and renewal both seem to work but it needs a broad spread of testing to make sure we're not going to impact anyone (excluding people who've ChatGPT'd it and have fucked up volumes).

Source / References:

[LinuxServer-CI]

I am a bot, here is the pushed image/manifest for this PR:

ghcr.io/linuxserver/lspipepr-swag:3.0.1-pkg-dc9e7754-dev-2dc24f90c7b42e71babae2018bae67924edf86de-pr-526

[LinuxServer-CI]

I am a bot, here is the pushed image/manifest for this PR:

ghcr.io/linuxserver/lspipepr-swag:3.0.1-pkg-dc9e7754-dev-589b80e492940a1605084f895576a045b3d6d65f-pr-526

[LinuxServer-CI]

I am a bot, here is the pushed image/manifest for this PR:

ghcr.io/linuxserver/lspipepr-swag:3.0.1-pkg-dc9e7754-dev-c489e2c07fc15df695803240e845e1d9796ae035-pr-526

[LinuxServer-CI]

I am a bot, here is the pushed image/manifest for this PR:

ghcr.io/linuxserver/lspipepr-swag:3.0.1-pkg-685237ed-dev-dbc5eb81fa0668abea937b7c554c01caf1cb9db2-pr-526

[LinuxServer-CI]

I am a bot, here is the pushed image/manifest for this PR:

ghcr.io/linuxserver/lspipepr-swag:3.0.1-pkg-685237ed-dev-d3112c095355b85f2efd577be716973bb0923d73-pr-526

[nemchik]

Confirmed working. Upgraded existing container, forced renewal, and deleted certs so init would generate brand new.