fix: missing metrics for healed objects

[harshavardhana]

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Description

fix: missing metrics for healed objects

Motivation and Context

all healed successful objects via queueHealTask
in a non-blocking heal weren't being reported
correctly, this PR fixes this comprehensively.

How to test this PR?

Types of changes

• Bug fix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds functionality)
• Optimization (provides speedup with no functional changes)
• Breaking change (fix or feature that would cause existing functionality to change)

Checklist:

• Fixes a regression (If yes, please add commit-id or PR # here)
• Unit tests added/updated
• Internal documentation updated
• Create a documentation update request here

[shtripat]

lgtm