Add Stringer for Request type

[k1LoW]

No description provided.

[github-actions]

Code Metrics Report

	main (8322fdd)	#57 (cdc524b)	+/-
Coverage	81.7%	82.2%	+0.4%
Code to Test Ratio	1:0.4	1:0.4	-0.0
Test Execution Time	26s	26s	0s

Details

  |                     | main (8322fdd) | #57 (cdc524b) |  +/-  |
  |---------------------|----------------|---------------|-------|
+ | Coverage            |          81.7% |         82.2% | +0.4% |
  |   Files             |              3 |             3 |     0 |
  |   Lines             |            613 |           628 |   +15 |
+ |   Covered           |            501 |           516 |   +15 |
- | Code to Test Ratio  |          1:0.4 |         1:0.4 |  -0.0 |
  |   Code              |           2097 |          2120 |   +23 |
+ |   Test              |            882 |           883 |    +1 |
  | Test Execution Time |            26s |           26s |    0s |

Code coverage of files in pull request scope (82.8% → 83.3%)

Files	Coverage	+/-
grpcstub.go	83.3%	+0.5%

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Reported by octocov