Remove Unnecessary GHA tools

[dereknola]

Proposed Changes

On several E2E tests (most notably multus) the node runs out of space. Remove unnecessary tools preinstalled on the GHA runners.

Failures:
https://github.com/rancher/rke2/actions/runs/20603164534
https://github.com/rancher/rke2/actions/runs/20603314131
https://github.com/rancher/rke2/actions/runs/20466863314

Types of Changes

CI Improvement

Verification

CI is less flaky and more green.

Testing

Linked Issues

N/A Internal CI issue, not tracking for QA

User-Facing Change

Further Comments

[codecov-commenter]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 9.07%. Comparing base (7813ed3) to head (124ea8b).

❗ There is a different number of reports uploaded between BASE (7813ed3) and HEAD (124ea8b). Click for more details.

HEAD has 6 uploads less than BASE

Flag	BASE (7813ed3)	HEAD (124ea8b)
unittests	4	0
inttests	4	2

Additional details and impacted files

@@            Coverage Diff             @@
##           master   #9447       +/-   ##
==========================================
- Coverage   19.39%   9.07%   -10.32%     
==========================================
  Files          48      37       -11     
  Lines        4043    2964     -1079     
==========================================
- Hits          784     269      -515     
+ Misses       3216    2681      -535     
+ Partials       43      14       -29     

Flag	Coverage Δ
inttests	9.07% <ø> (ø)
unittests	?

Flags with carried forward coverage won't be shown. Click here to find out more.

☔ View full report in Codecov by Sentry.
📢 Have feedback on the report? Share it here.

🚀 New features to boost your workflow:

• ❄️ Test Analytics: Detect flaky tests, report on failures, and find test suite problems.