Update JSON schema for custom metrics

[k1LoW]

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[github-actions]

Code Metrics Report

	main (dc0c53e)	#272 (fac4764)	+/-
Coverage	66.5%	66.6%	+0.0%
Code to Test Ratio	1:0.5	1:0.5	0.0
Test Execution Time	19s	17s	-2s

Details

  |                     | main (dc0c53e) | #272 (fac4764) |  +/-  |
  |---------------------|----------------|----------------|-------|
+ | Coverage            |          66.5% |          66.6% | +0.0% |
  |   Files             |             31 |             31 |     0 |
  |   Lines             |           2799 |           2799 |     0 |
+ |   Covered           |           1862 |           1863 |    +1 |
  | Code to Test Ratio  |          1:0.5 |          1:0.5 |   0.0 |
  |   Code              |           7214 |           7214 |     0 |
  |   Test              |           3512 |           3512 |     0 |
+ | Test Execution Time |            19s |            17s |   -2s |

Benchmark-0 (this is custom metrics test)

	main (dc0c53e)	#272 (fac4764)	+/-
Number of iterations	1000	1000	0
Nanoseconds per iteration	676.5 ns/op	676.5 ns/op	0.0 ns/op

Metadata

	main (dc0c53e)	#272 (fac4764)
goos	darwin	darwin
goarch	amd64	amd64

Benchmark-1 (this is custom metrics test)

	main (dc0c53e)	#272 (fac4764)	+/-
Number of iterations	1500	1500	0
Nanoseconds per iteration	1345 ns/op	1345 ns/op	0 ns/op

Metadata

	main (dc0c53e)	#272 (fac4764)
goos	darwin	darwin
goarch	amd64	amd64

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Reported by octocov