test: Add Calico Inbound and Outbound policies to LKE nodes for E2E

[ykim-akamai]

📝 Description

A new script, lke_calico_rules_e2e.sh, has been added and is called in the E2E workflow file after the Run the integration test suite step in e2e-suite.yml

Key Points:

• kubectl and calicoctl binaries are required as pre-req which are downloed in the e2e worflow file
• The script retrieves all LKE clusters in the test account and applies Calico rules to the corresponding nodes. If no clusters exist, no action is taken. In most cases, clusters are cleaned and deleted properly after test execution
• Due to the delay in the availability of LKE cluster configurations and the provisioning times of node instances, it is challenging to apply Calico rules directly within the test framework. Therefore, the script is separated and executed independently in the workflow file

✔️ How to Test

Forked run - https://github.com/ykim-1/linodego/actions/runs/9491201493/job/26156141578

Forked run on PR - https://github.com/ykim-1/linodego/actions/runs/9491223844/job/26156204794
Note test failed but it was able to apply the calico rules

📷 Preview

If applicable, include a screenshot or code snippet of this change. Otherwise, please remove this section.

[lgarber-akamai]

Script tested in linode/linode-cli#619