deploy: alma-tests-cacher/vars.yaml not writable

```
failed: [albs_on_one_vm] (item={'sname': 'alma-tests-cacher-vars.yaml.j2', 'dname': 'vars.yaml', 'dest': '~/albs/alma-tests-cacher', 'mode': '0644'}) => {
"ansible_loop_var": "item",
"changed": false,
"checksum": "a66e991e4068785cf784b5269ac52cd235439d5c",
"diff": [],
"invocation": {
"module_args": {
"_original_basename": "alma-tests-cacher-vars.yaml.j2",
"attributes": null,
"backup": false,
"checksum": "a66e991e4068785cf784b5269ac52cd235439d5c",
"content": null,
"dest": "/home/almalinux/albs/alma-tests-cacher/vars.yaml",
"directory_mode": null,
"follow": false,
"force": true,
"group": null,
"local_follow": null,
"mode": "0644",
"owner": null,
"remote_src": null,
"selevel": null,
"serole": null,
"setype": null,
"seuser": null,
"src": "/home/almalinux/.ansible/tmp/ansible-tmp-1726822499.238247-1722109-25746337306537/source",
"unsafe_writes": false,
"validate": null
}
},
"item": {
"dest": "~/albs/alma-tests-cacher",
"dname": "vars.yaml",
"mode": "0644",
"sname": "alma-tests-cacher-vars.yaml.j2"
}
}

MSG:

Destination /home/almalinux/albs/alma-tests-cacher/vars.yaml not writable
```

vars.yaml is a directory for some reasons.
```
total 64
-rw-r--r--. 1 almalinux almalinux 684 Sep 19 07:50 Dockerfile
-rw-r--r--. 1 almalinux almalinux 34523 Sep 19 07:50 LICENSE
-rw-r--r--. 1 almalinux almalinux 1329 Sep 19 07:50 README.md
drwxr-xr-x. 3 almalinux almalinux 114 Sep 20 08:40 alma_tests_cacher
-rw-r--r--. 1 almalinux almalinux 731 Sep 19 07:50 alma_tests_cacher.py
-rw-r--r--. 1 almalinux almalinux 325 Sep 19 07:50 docker-compose.yml
-rw-r--r--. 1 almalinux almalinux 866 Sep 19 07:50 pyproject.toml
-rw-r--r--. 1 almalinux almalinux 143 Sep 19 07:50 requirements-tests.txt
-rw-r--r--. 1 almalinux almalinux 103 Sep 19 07:50 requirements.txt
drwxr-xr-x. 2 almalinux almalinux 47 Sep 19 07:50 tests
drwxr-xr-x. 2 root root 6 Sep 20 08:43 vars.yaml
```

The following definitions of volumes creates `vars.yaml` as a directory and it prevents to deploy generated_configs in `roles/dev_deploy/defaults/main/configs.yml`.

```
tests_cacher:
image: alma-tests-cacher:latest
build:
context: ../alma-tests-cacher
dockerfile: Dockerfile
target: cacher
restart: on-failure
volumes:
- "../alma-tests-cacher/alma_tests_cacher:/code/alma_tests_cacher"
- "../alma-tests-cacher/alma_tests_cacher.py:/code/alma_tests_cacher.py"
- "../alma-tests-cacher/vars.yaml:/code/vars.yaml"
```