ci: replace ad-hoc rm -rf with free-disk-space action in test-podman-next

[Ankitsinghsisodya]

Fixes #3554

Summary

• Replaces three manual sudo rm -rf lines in test-podman-next.yaml with the standardized endersonmenezes/free-disk-space@v3 action
• The action also removes swap (remove_swap: true), which the manual approach missed
• Uses rmz for faster removal, consistent with all other long-running CI jobs

Test plan

• Verify the workflow runs successfully with the new action
• Confirm disk space is freed before the podman-next test step

[knative-prow]

Hi @Ankitsinghsisodya. Thanks for your PR.

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[Copilot]

Pull request overview

Updates the scheduled Podman “next” CI workflow to use the repository-standard disk cleanup approach, aligning it with other long-running workflows and addressing #3554.

Changes:

• Replaces ad-hoc sudo rm -rf cleanup with endersonmenezes/free-disk-space@v3.
• Enables swap removal (remove_swap: true) and standardizes on rm_cmd: "rmz" for faster cleanup.

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[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 56.22%. Comparing base (e92b074) to head (c35d875).
⚠️ Report is 1 commits behind head on main.

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #3558      +/-   ##
==========================================
+ Coverage   55.52%   56.22%   +0.70%     
==========================================
  Files         180      180              
  Lines       20465    20465              
==========================================
+ Hits        11363    11507     +144     
+ Misses       7902     7757     -145     
- Partials     1200     1201       +1     

Flag	Coverage Δ
e2e	36.12% <ø> (-4.06%)	⬇️
e2e go	32.55% <ø> (ø)
e2e node	28.36% <ø> (ø)
e2e python	32.91% <ø> (ø)
e2e quarkus	28.50% <ø> (+0.02%)	⬆️
e2e rust	27.92% <ø> (ø)
e2e springboot	26.38% <ø> (+0.02%)	⬆️
e2e typescript	28.47% <ø> (ø)
e2e-config-ci	18.14% <ø> (ø)
integration	17.40% <ø> (+<0.01%)	⬆️
unit macos-14	43.37% <ø> (ø)
unit macos-latest	43.37% <ø> (ø)
unit ubuntu-24.04-arm	43.57% <ø> (ø)
unit ubuntu-latest	44.25% <ø> (ø)
unit windows-latest	43.39% <ø> (ø)

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[gauron99]

/ok-to-test

[gauron99]

/lgtm
/approve

[knative-prow]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: Ankitsinghsisodya, gauron99

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• OWNERS [gauron99]

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