Install AWS CLI with --update flag

When using an AMI with aws CLI already the process fails due to this error:
```
amazon-ebs.ubuntu-22.04: fatal: [default]: FAILED! => {"changed": true, "cmd": ["/tmp/aws/install", "-i", "/usr/local/aws-cli", "-b", "/usr/local/sbin"], "delta": "0:00:01.067315", "end": "2024-08-26 23:55:10.251337", "msg": "non-zero return code", "rc": 1, "start": "2024-08-26 23:55:09.184022", "stderr": "Found preexisting AWS CLI installation: /usr/local/aws-cli/v2/current. Please rerun install script with --update flag.", "stderr_lines": ["Found preexisting AWS CLI installation: /usr/local/aws-cli/v2/current. Please rerun install script with --update flag."], "stdout": "", "stdout_lines": []}
```
I propose to install the aws cli with the --upgrade option in order to overcome these situations

images/capi/ansible/roles/providers/tasks/awscliv2.yml

@@ -91,7 +91,7 @@
   when: ansible_os_family != "Flatcar"
 
 - name: Install AWS CLI v2
-  ansible.builtin.command: /tmp/aws/install -i /usr/local/aws-cli -b /usr/local/sbin
+  ansible.builtin.command: /tmp/aws/install --update -i /usr/local/aws-cli -b /usr/local/sbin
   when: ansible_os_family != "Flatcar"
 
 - name: Remove temporary files