Merge run() function context and runner (chrome) context

[k1LoW]

SSIA. And delay the timing of Chrome startup.

[github-actions]

BenchmarkManyRunbooks-4

	main (-)	#791 (fc4274f)	+/-
Number of iterations	1	1	0
Nanoseconds per iteration	3,311,295,430 ns/op	3,308,819,037 ns/op	-2,476,393 ns/op
Bytes allocated per iteration	1,543,578,952 B/op	1,544,422,192 B/op	843,240 B/op
Allocs per iteration	17,124,746 allocs/op	17,124,935 allocs/op	189 allocs/op

Metadata

	main (-)	#791 (fc4274f)
goos	linux	linux
goarch	amd64	amd64
pkg	github.com/k1LoW/runn	github.com/k1LoW/runn
cpu	AMD EPYC 7763 64-Core Processor	AMD EPYC 7763 64-Core Processor

BenchmarkSingleRunbook-4

	main (-)	#791 (fc4274f)	+/-
Number of iterations	20	20	0
Nanoseconds per iteration	54,647,549 ns/op	54,050,667 ns/op	-596,882 ns/op
Bytes allocated per iteration	57,390,382 B/op	57,376,101 B/op	-14,281 B/op
Allocs per iteration	163,048 allocs/op	163,051 allocs/op	3 allocs/op

Metadata

	main (-)	#791 (fc4274f)
goos	linux	linux
goarch	amd64	amd64
pkg	github.com/k1LoW/runn	github.com/k1LoW/runn
cpu	AMD EPYC 7763 64-Core Processor	AMD EPYC 7763 64-Core Processor

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Reported by octocov

[github-actions]

Code Metrics Report

	main (b1ad913)	#791 (fc4274f)	+/-
Coverage	70.4%	70.3%	-0.1%
Code to Test Ratio	1:0.7	1:0.7	-0.0
Test Execution Time	2m43s	2m55s	+12s

Details

  |                     | main (b1ad913) | #791 (fc4274f) |  +/-  |
  |---------------------|----------------|----------------|-------|
- | Coverage            |          70.4% |          70.3% | -0.1% |
  |   Files             |             49 |             49 |     0 |
  |   Lines             |           9353 |           9355 |    +2 |
- |   Covered           |           6581 |           6576 |    -5 |
- | Code to Test Ratio  |          1:0.7 |          1:0.7 |  -0.0 |
  |   Code              |          12874 |          12876 |    +2 |
  |   Test              |           9542 |           9542 |     0 |
- | Test Execution Time |          2m43s |          2m55s |  +12s |

Code coverage of files in pull request scope (71.8% → 70.0%)

Files	Coverage	+/-
cdp.go	70.0%	-1.8%

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Reported by octocov