Replace Objects.hash with HashingUtils.hash

[dougqh]

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What Does This Do

Replaces all calls to java.util.Objects.hash() with datadog.trace.util.HashingUtils.hash() across the codebase.

Motivation

This change implements APMLP-1054, which standardizes hash code computation by using a custom HashingUtils.hash() method instead of the standard library's Objects.hash(). This provides better control over hashing behavior and consistency across the Datadog tracing agent.

Additional Notes

• Updated 68 files across multiple modules including agent-bootstrap, agent-ci-visibility, agent-debugger, agent-crashtracking, agent-iast, agent-profiling, and internal-api
• Maintained existing import statements for java.util.Objects where they are used for other purposes (e.g., Objects.equals())
• Fixed import ordering in several files to follow conventions (static imports at the end)

Jira ticket: [APMLP-1054]

[datadog-official]

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Bits Dev status: ✅ Done

CI Auto-fix: Disabled | Enable

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