Readme: Update docs with secret passing mechanism

[LenardHess]

---

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

---

Remaining tasks

• [x] Release ddclient v3.11.0
• [x] Rebase this pull request once v3.11.0 has been picked up in this repo.

Description:

This PR adds documentation about the new secret passing mechanism of ddclient to the README. This feature is available as of prerelease v3.11.0_1 of ddclient.

Note: This is marked as draft, the relevant ddclient update has not reached this repo as only a prerelease was made. The relevant release should happen within a few days. (Relevant discussion here)

Benefits of this PR and context:

The need of a secret passing mechanism has been mentioned before (#44, #68). I'm guessing that the prior lack of it also led to attempts to bind-mount of the config file (#70).

How Has This Been Tested?

Local Jenkins run for README.md generation

Source / References:

The ddclient changelog here

The original ddclient pull request for the secret mechanism is here. This one was rejected due to the recent maintainership transition. It got picked up in the (now merged back) fork here.

I did not yet merge the docs update to ddclient.github.io, but the pull request is here.

[LinuxServer-CI]

I am a bot, here are the test results for this PR: https://ci-tests.linuxserver.io/lspipepr/ddclient/v3.10.0-pkg-c7503e33-dev-cc0d9d27e3a909a2b2d6c2948c52e147f085b05a-pr-76/index.html https://ci-tests.linuxserver.io/lspipepr/ddclient/v3.10.0-pkg-c7503e33-dev-cc0d9d27e3a909a2b2d6c2948c52e147f085b05a-pr-76/shellcheck-result.xml	Tag	Passed
amd64-v3.10.0-pkg-c7503e33-dev-cc0d9d27e3a909a2b2d6c2948c52e147f085b05a-pr-76	✅
arm64v8-v3.10.0-pkg-c7503e33-dev-cc0d9d27e3a909a2b2d6c2948c52e147f085b05a-pr-76	✅

[LinuxServer-CI]

I am a bot, here are the test results for this PR: https://ci-tests.linuxserver.io/lspipepr/ddclient/v3.11.0-pkg-3a436cd3-dev-1ac01ad14c132f82f92492cd07f7d1a145284c3d-pr-76/index.html https://ci-tests.linuxserver.io/lspipepr/ddclient/v3.11.0-pkg-3a436cd3-dev-1ac01ad14c132f82f92492cd07f7d1a145284c3d-pr-76/shellcheck-result.xml	Tag	Passed
amd64-v3.11.0-pkg-3a436cd3-dev-1ac01ad14c132f82f92492cd07f7d1a145284c3d-pr-76	✅
arm64v8-v3.11.0-pkg-3a436cd3-dev-1ac01ad14c132f82f92492cd07f7d1a145284c3d-pr-76	✅

[LinuxServer-CI]

This pull request has been automatically marked as stale because it has not had recent activity. This might be due to missing feedback from OP. It will be closed if no further activity occurs. Thank you for your contributions.

[LinuxServer-CI]

I am a bot, here are the test results for this PR: https://ci-tests.linuxserver.io/lspipepr/ddclient/v3.11.2-pkg-03b434a4-dev-d1a871e391ce7d33655047c437ff192b5b78a19d-pr-76/index.html https://ci-tests.linuxserver.io/lspipepr/ddclient/v3.11.2-pkg-03b434a4-dev-d1a871e391ce7d33655047c437ff192b5b78a19d-pr-76/shellcheck-result.xml	Tag	Passed
amd64-v3.11.2-pkg-03b434a4-dev-d1a871e391ce7d33655047c437ff192b5b78a19d-pr-76	✅
arm64v8-v3.11.2-pkg-03b434a4-dev-d1a871e391ce7d33655047c437ff192b5b78a19d-pr-76	✅

[drizuid]

This is covered in the upstream documentation, our readme is not a reproduction of the app documentation. We clarify how our container might change locations or access requirements. As we do not change the behavior of this feature, I do not think it's appropriate to add to our readme.

[LinuxServer-CI]

This pull request has been automatically marked as stale because it has not had recent activity. This might be due to missing feedback from OP. It will be closed if no further activity occurs. Thank you for your contributions.

[github-actions[bot]]

This pull request is locked due to inactivity