fix(lambda): making metric change for serverless land

[Vandita2020]

Problem

Earlier we recorded the pattern name based on the asset name, which resulted in multiple records for the same template. This occurred because the asset name included the runtime name as well.

Solution

Modified the metric recording process to capture the pattern name, which remains consistent across runtimes. This approach ensures there is a single entry for each pattern, regardless of the runtime utilized. The runtime information is recorded separately.

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