chore(deps): bump firecracker version to v0.25.2

[github-actions]

This is an automatically generated PR to bump the version of firecracker
in our tests. There are some manual steps to get new releases of our fork
branch published.
This PR is to track those manual steps.

To complete work on this PR:

• Update (merge or rebase) the fork macvtap feature branch to the latest upstream release tag v0.25.2. Note: Do not update the feature branch to upstream main.
• Make sure it builds. (See: doc)
• Push the updated firecracker 'feature/macvtap' fork branch.
• Create a new tag on the updated firecracker 'feature/macvtap' fork branch: git tag -s v0.25.2-macvtap -m v0.25.2-macvtap.
• Push the tag to the fork: git push <remote> v0.25.2-macvtap (A new release will be created.)
• In this repo, trigger the nightly_e2e workflow to run on the bump-firecracker-04e639db56f2b95998ffd13b1dd8f555d11c5d7e branch.
• Once the tests have passed:
  • Edit the title of this PR to remove the 'WIP'
  • Mark this PR as ready to review
  • Approve and merge

Auto-generated by create-pull-request.

[codecov-commenter]

Codecov Report

Merging #317 (ca6acf0) into main (d045e5f) will increase coverage by 0.03%.
The diff coverage is n/a.

@@            Coverage Diff             @@
##             main     #317      +/-   ##
==========================================
+ Coverage   57.94%   57.98%   +0.03%     
==========================================
  Files          51       51              
  Lines        2506     2506              
==========================================
+ Hits         1452     1453       +1     
  Misses        937      937              
+ Partials      117      116       -1     

Impacted Files	Coverage Δ
pkg/process/process.go	39.62% <0.00%> (+1.88%)	⬆️

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