Add EnableHealthCheck option

[k1LoW]

No description provided.

[github-actions]

Code Metrics Report

	main (f0dca56)	#39 (a9b9f5f)	+/-
Coverage	77.1%	77.7%	+0.5%
Code to Test Ratio	1:0.3	1:0.3	-0.0
Test Execution Time	31s	32s	+1s

Details

  |                     | main (f0dca56) | #39 (a9b9f5f) |  +/-  |
  |---------------------|----------------|---------------|-------|
+ | Coverage            |          77.1% |         77.7% | +0.5% |
  |   Files             |              3 |             3 |     0 |
  |   Lines             |            595 |           605 |   +10 |
+ |   Covered           |            459 |           470 |   +11 |
- | Code to Test Ratio  |          1:0.3 |         1:0.3 |  -0.0 |
  |   Code              |           2071 |          2090 |   +19 |
+ |   Test              |            706 |           707 |    +1 |
- | Test Execution Time |            31s |           32s |   +1s |

Code coverage of files in pull request scope (76.3% → 76.9%)

Files	Coverage	+/-
grpcstub.go	77.9%	+0.5%
option.go	67.3%	+2.0%

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Reported by octocov