chore!: separated galaxy deps and own collections; modified ansible script generation to use two paths for collections

REQUIRES REGENERATING ansible.cfg!

ansible_collections/nullified/infrastructure/roles/kubectl/README.md

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+Kubectl
+=========
+
+This role handles the installation of the kubectl binary and optionally supports version pining or unconditional upgrade.
+
+Requirements
+------------
+
+Only tested and used on Debian (uses the `ansible.builtin.apt` module).
+
+Role Variables
+--------------
+### `kubectl_binary_path`
+Path where the kubectl binary is installed (no discovery is performed so pre-existing binaries will remain untouched).
+
+**Default value**: `kubectl_binary_path: /usr/local/bin/kubectl`
+
+### `kubectl_install_version`
+Version of kubectl to install. It allows multiple values:
+- empty: will install the binary if not already present, else nothing is changed,
+- 'vX.Y.Z': will install the specified version (e.g. `v3.15.2`), upgrading / downgrading the local binary if required,
+- latest: will install the latest available version unless the local binary is already up-to-date.
+
+**Default value**: `kubectl_install_version: latest`
+
+License
+-------
+
+MIT