Bump antsibull-docs and antsibull-docs-parser versions

[felixfontein]

antsibull-docs 2.13.0 and antsibull-docs-parser 1.1.0 are out with improved markup generation.

[oraNod]

LGTM 🚀

[patchback]

Backport to stable-2.16: 💔 cherry-picking failed — conflicts found

❌ Failed to cleanly apply b0315c3 on top of patchback/backports/stable-2.16/b0315c3637cc7b97ad93a2a51c237a0f1ad91d7b/pr-1799

Backporting merged PR #1799 into devel

1. Ensure you have a local repo clone of your fork. Unless you cloned it
   from the upstream, this would be your origin remote.
2. Make sure you have an upstream repo added as a remote too. In these
   instructions you'll refer to it by the name upstream. If you don't
   have it, here's how you can add it:

   $ git remote add upstream https://github.com/ansible/ansible-documentation.git

3. Ensure you have the latest copy of upstream and prepare a branch
   that will hold the backported code:

   $ git fetch upstream
   $ git checkout -b patchback/backports/stable-2.16/b0315c3637cc7b97ad93a2a51c237a0f1ad91d7b/pr-1799 upstream/stable-2.16

4. Now, cherry-pick PR Bump antsibull-docs and antsibull-docs-parser versions #1799 contents into that branch:

   $ git cherry-pick -x b0315c3637cc7b97ad93a2a51c237a0f1ad91d7b

   If it'll yell at you with something like fatal: Commit b0315c3637cc7b97ad93a2a51c237a0f1ad91d7b is a merge but no -m option was given., add -m 1 as follows instead:

   $ git cherry-pick -m1 -x b0315c3637cc7b97ad93a2a51c237a0f1ad91d7b

5. At this point, you'll probably encounter some merge conflicts. You must
   resolve them in to preserve the patch from PR Bump antsibull-docs and antsibull-docs-parser versions #1799 as close to the
   original as possible.
6. Push this branch to your fork on GitHub:

   $ git push origin patchback/backports/stable-2.16/b0315c3637cc7b97ad93a2a51c237a0f1ad91d7b/pr-1799

7. Create a PR, ensure that the CI is green. If it's not — update it so that
   the tests and any other checks pass. This is it!
   Now relax and wait for the maintainers to process your pull request
   when they have some cycles to do reviews. Don't worry — they'll tell you if
   any improvements are necessary when the time comes!

🤖 @patchback
I'm built with octomachinery and
my source is open — https://github.com/sanitizers/patchback-github-app.

[patchback]

Backport to stable-2.17: 💔 cherry-picking failed — conflicts found

❌ Failed to cleanly apply b0315c3 on top of patchback/backports/stable-2.17/b0315c3637cc7b97ad93a2a51c237a0f1ad91d7b/pr-1799

Backporting merged PR #1799 into devel

1. Ensure you have a local repo clone of your fork. Unless you cloned it
   from the upstream, this would be your origin remote.
2. Make sure you have an upstream repo added as a remote too. In these
   instructions you'll refer to it by the name upstream. If you don't
   have it, here's how you can add it:

   $ git remote add upstream https://github.com/ansible/ansible-documentation.git

3. Ensure you have the latest copy of upstream and prepare a branch
   that will hold the backported code:

   $ git fetch upstream
   $ git checkout -b patchback/backports/stable-2.17/b0315c3637cc7b97ad93a2a51c237a0f1ad91d7b/pr-1799 upstream/stable-2.17

4. Now, cherry-pick PR Bump antsibull-docs and antsibull-docs-parser versions #1799 contents into that branch:

   $ git cherry-pick -x b0315c3637cc7b97ad93a2a51c237a0f1ad91d7b

   If it'll yell at you with something like fatal: Commit b0315c3637cc7b97ad93a2a51c237a0f1ad91d7b is a merge but no -m option was given., add -m 1 as follows instead:

   $ git cherry-pick -m1 -x b0315c3637cc7b97ad93a2a51c237a0f1ad91d7b

5. At this point, you'll probably encounter some merge conflicts. You must
   resolve them in to preserve the patch from PR Bump antsibull-docs and antsibull-docs-parser versions #1799 as close to the
   original as possible.
6. Push this branch to your fork on GitHub:

   $ git push origin patchback/backports/stable-2.17/b0315c3637cc7b97ad93a2a51c237a0f1ad91d7b/pr-1799

7. Create a PR, ensure that the CI is green. If it's not — update it so that
   the tests and any other checks pass. This is it!
   Now relax and wait for the maintainers to process your pull request
   when they have some cycles to do reviews. Don't worry — they'll tell you if
   any improvements are necessary when the time comes!

🤖 @patchback
I'm built with octomachinery and
my source is open — https://github.com/sanitizers/patchback-github-app.