Prepare 1.1.1 release

Run add_docs.py
Run antsibull-changelog; backfill for prior releases
Bump release in galaxy.yml
Add .keep to changelogs/fragments so directory is not deleted if
`keep_fragments` is ever set to False.

CHANGELOG.rst

@@ -0,0 +1,73 @@
+===========================
+ansible.posix Release Notes
+===========================
+
+.. contents:: Topics
+
+
+v1.1.1
+======
+
+Bugfixes
+--------
+
+- Fix synchronize to work with renamed docker and buildah connection plugins.
+
+v1.1.0
+======
+
+Minor Changes
+-------------
+
+- firewalld - add firewalld module to ansible.posix collection
+
+v1.0.0
+======
+
+Major Changes
+-------------
+
+- Bootstrap Collection (https://github.com/ansible-collections/ansible.posix/pull/1).
+
+Minor Changes
+-------------
+
+- CI should use devel (https://github.com/ansible-collections/ansible.posix/pull/6).
+- Enable tests for at, patch and synchronize modules (https://github.com/ansible-collections/ansible.posix/pull/5).
+- Enabled tags in galaxy.yml (https://github.com/ansible-collections/ansible.posix/issues/18).
+- Migrate hacking/cgroup_perf_recap_graph.py to this collection, since the cgroup_perf_recap callback lives here.
+- Remove license key from galaxy.yml.
+- Remove sanity jobs from shippable (https://github.com/ansible-collections/ansible.posix/pull/43).
+- Removed ANSIBLE_METADATA from all the modules.
+- Revert "Enable at, patch and synchronize tests (https://github.com/ansible-collections/ansible.posix/pull/5)".
+- Update EXAMPLES section in modules to use FQCN.
+- Update README.md (https://github.com/ansible-collections/ansible.posix/pull/4/).
+
+Bugfixes
+--------
+
+- Allow unsetting existing environment vars via environment by specifying a null value (https://github.com/ansible/ansible/pull/68236).
+- Mount - Handle remount with new options (https://github.com/ansible/ansible/issues/59460).
+- Profile_tasks - result was a odict_items which is not subscriptable, so the slicing was failing (https://github.com/ansible/ansible/issues/59059).
+- Revert "mount - Check if src exists before mounted (ansible/ansible#61752)".
+- Typecast results before use in profile_tasks callback (https://github.com/ansible/ansible/issues/69563).
+- authorized_keys - Added FIDO2 security keys (https://github.com/ansible-collections/ansible.posix/issues/17).
+- authorized_keys - fix inconsistent return value for check mode (https://github.com/ansible-collections/ansible.posix/issues/37)
+- json callback - Fix host result to task references in the resultant JSON output for non-lockstep strategy plugins such as free (https://github.com/ansible/ansible/issues/65931)
+- mount - fix issues with ismount module_util pathing for Ansible 2.9 (fixes https://github.com/ansible-collections/ansible.posix/issues/21)
+- patch - fix FQCN usage for action plugin (https://github.com/ansible-collections/ansible.posix/issues/11)
+- selinux - add missing configuration keys for /etc/selinux/config (https://github.com/ansible-collections/ansible.posix/issues/23)
+- synchronize - fix FQCN usage for action plugin (https://github.com/ansible-collections/ansible.posix/issues/11)
+
+New Modules
+-----------
+
+- acl - Set and retrieve file ACL information.
+- at - Schedule the execution of a command or script file via the at command
+- authorized_key - Adds or removes an SSH authorized key
+- mount - Control active and configured mount points
+- patch - Apply patch files using the GNU patch tool
+- seboolean - Toggles SELinux booleans
+- selinux - Change policy and state of SELinux
+- synchronize - A wrapper around rsync to make common tasks in your playbooks quick and easy
+- sysctl - Manage entries in sysctl.conf.