release: bump version to v0.3.2

[ArangoGutierrez]

Summary

Bump version to v0.3.2 and update periodic cleanup workflow to use the new release.

Changes

• Bump ProgramVersion to 0.3.2
• Extract NewApp() constructor for testability
• Update periodic.yaml to use NVIDIA/holodeck@v0.3.2
• Add CHANGELOG entry for v0.3.2

What's in v0.3.2

• fix: revoke cross-referencing SG rules before deletion in cleanup (fix: revoke cross-referencing SG rules before deletion in cleanup #766) — Fixes DependencyViolation errors when cleaning up VPCs with mutually-referencing security groups (CP ↔ Worker pattern).
• ci: update periodic cleanup to v0.3.1 (ci: update periodic cleanup to v0.3.1 #765)

Post-merge

After merge, tag v0.3.2 and create GitHub release. Then trigger periodic cleanup to verify the 2 stuck VPCs in us-west-1 are cleaned.

[coveralls]

Pull Request Test Coverage Report for Build 23819814657

Warning: This coverage report may be inaccurate.

This pull request's base commit is no longer the HEAD commit of its target branch. This means it includes changes from outside the original pull request, including, potentially, unrelated coverage changes.

• For more information on this, see Tracking coverage changes with pull request builds.
• To avoid this issue with future PRs, see these Recommended CI Configurations.
• For a quick fix, rebase this PR at GitHub. Your next report should be accurate.

Details

• 6 of 10 (60.0%) changed or added relevant lines in 1 file are covered.
• No unchanged relevant lines lost coverage.
• Overall coverage increased (+0.8%) to 46.45%

---

Changes Missing Coverage	Covered Lines	Changed/Added Lines	%
cmd/cli/main.go	6	10	60.0%

Totals
Change from base Build 23819433272:	0.8%
Covered Lines:	5097
Relevant Lines:	10973

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💛 - Coveralls