chore(audit): spotbugs corrections

[andrewazores]

Welcome to Cryostat! 👋

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---

Related to #1423

Description of the change:

Fixes missed spotbugs issues. It seems the spotbugs CI check runs in the wrong context and actually checks the base branch (ie main), not the PR branch. See #1439

[andrewazores]

/build_test

[github-actions]

Workflow started at 4/1/2026, 1:59:22 PM. View Actions Run.

[github-actions]

No OpenAPI schema changes detected.

[github-actions]

No WebSocket notifications schema changes detected.

[github-actions]

No GraphQL schema changes detected.

[andrewazores]

/build_test

[github-actions]

Workflow started at 4/1/2026, 2:07:33 PM. View Actions Run.

[github-actions]

CI build: Integration tests pass ✅
https://github.com/cryostatio/cryostat/actions/runs/23863124447

[github-actions]

No WebSocket notifications schema changes detected.

[github-actions]

No OpenAPI schema changes detected.

[github-actions]

No GraphQL schema changes detected.

[github-actions]

CI build: Unit tests pass ✅
https://github.com/cryostatio/cryostat/actions/runs/23863124447

[github-actions]

CI build: Integration tests pass ✅
https://github.com/cryostatio/cryostat/actions/runs/23863474096

[github-actions]

CI build: Unit tests pass ✅
https://github.com/cryostatio/cryostat/actions/runs/23863474096