Fix for provider metrics recording as zero status code

Changelog for 0.16.3:

• PR #281 Bump github.com/containerd/containerd from 1.6.4 to 1.6.6 by @dependabot[bot]
• PR #292 updated faasd version to 0.16.2 by @nitishkumar71

Commits
9564e64 Fix issue with provider metrics by @alexellis
6dbc33d Bump github.com/containerd/containerd from 1.6.4 to 1.6.6 by @dependabot[bot]
5cedf28 Dev.md updated to version 0.16.2 by @nitishkumar71

Changes: 0.16.2...0.16.3

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