ci: bump ansible-lint to v25; provide collection requirements for ansible-lint

There is a new version of ansible-lint - v25.
Newer versions of ansible-lint require the collection requirements to be
installed so it can find the modules/plugins.
Enhance our ansible-lint ci job to provide the collection requirements,
including merging the runtime meta/collection-requirements.yml with
the testing tests/collection-requirements.yml.
This should somewhat mitigate the loss of ansible-plugin-scan.
We have to remove mock_modules that are actually present now.

Signed-off-by: Rich Megginson <rmeggins@redhat.com>

Author: richm

.github/workflows/ansible-lint.yml

@@ -40,6 +40,8 @@ jobs:
           set -euxo pipefail
           TOXENV=collection lsr_ci_runtox
           coll_dir=".tox/ansible_collections/$LSR_ROLE2COLL_NAMESPACE/$LSR_ROLE2COLL_NAME"
+          # cleanup after collection conversion
+          rm -rf "$coll_dir/.ansible" .tox/ansible-plugin-scan
           # ansible-lint action requires a .git directory???
           # https://github.com/ansible/ansible-lint/blob/main/action.yml#L45
           mkdir -p "$coll_dir/.git"