Fixes GRPC unit tests

[codecov[bot]]

Codecov Report

Base: 88.00% // Head: 88.12% // Increases project coverage by +0.12% :tada:

Coverage data is based on head (a938ecc) compared to base (c461f46). Patch coverage: 81.66% of modified lines in pull request are covered.

Additional details and impacted files

```diff @@ Coverage Diff @@ ## 2.0 #44 +/- ## ============================================ + Coverage 88.00% 88.12% +0.12% - Complexity 203 219 +16 ============================================ Files 40 43 +3 Lines 525 556 +31 ============================================ + Hits 462 490 +28 - Misses 63 66 +3 ``` | [Impacted Files](https://codecov.io/gh/spiral/roadrunner-bridge/pull/44?src=pr&el=tree&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=spiral) | Coverage Δ | | |---|---|---| | [src/Console/Command/GRPC/GenerateCommand.php](https://codecov.io/gh/spiral/roadrunner-bridge/pull/44/diff?src=pr&el=tree&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=spiral#diff-c3JjL0NvbnNvbGUvQ29tbWFuZC9HUlBDL0dlbmVyYXRlQ29tbWFuZC5waHA=) | `67.56% <0.00%> (-3.87%)` | :arrow_down: | | [src/GRPC/ProtoCompiler.php](https://codecov.io/gh/spiral/roadrunner-bridge/pull/44/diff?src=pr&el=tree&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=spiral#diff-c3JjL0dSUEMvUHJvdG9Db21waWxlci5waHA=) | `92.10% <50.00%> (-2.34%)` | :arrow_down: | | [src/Queue/Dispatcher.php](https://codecov.io/gh/spiral/roadrunner-bridge/pull/44/diff?src=pr&el=tree&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=spiral#diff-c3JjL1F1ZXVlL0Rpc3BhdGNoZXIucGhw) | `72.00% <50.00%> (+1.16%)` | :arrow_up: | | [src/Bootloader/GRPCBootloader.php](https://codecov.io/gh/spiral/roadrunner-bridge/pull/44/diff?src=pr&el=tree&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=spiral#diff-c3JjL0Jvb3Rsb2FkZXIvR1JQQ0Jvb3Rsb2FkZXIucGhw) | `76.19% <61.53%> (-23.81%)` | :arrow_down: | | [src/FailbackDispatcher.php](https://codecov.io/gh/spiral/roadrunner-bridge/pull/44/diff?src=pr&el=tree&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=spiral#diff-c3JjL0ZhaWxiYWNrRGlzcGF0Y2hlci5waHA=) | `90.90% <90.90%> (ø)` | | | [src/Bootloader/RoadRunnerBootloader.php](https://codecov.io/gh/spiral/roadrunner-bridge/pull/44/diff?src=pr&el=tree&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=spiral#diff-c3JjL0Jvb3Rsb2FkZXIvUm9hZFJ1bm5lckJvb3Rsb2FkZXIucGhw) | `100.00% <100.00%> (ø)` | | | [src/Config/GRPCConfig.php](https://codecov.io/gh/spiral/roadrunner-bridge/pull/44/diff?src=pr&el=tree&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=spiral#diff-c3JjL0NvbmZpZy9HUlBDQ29uZmlnLnBocA==) | `100.00% <100.00%> (ø)` | | | [src/Console/Command/Queue/ListCommand.php](https://codecov.io/gh/spiral/roadrunner-bridge/pull/44/diff?src=pr&el=tree&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=spiral#diff-c3JjL0NvbnNvbGUvQ29tbWFuZC9RdWV1ZS9MaXN0Q29tbWFuZC5waHA=) | `94.73% <100.00%> (ø)` | | | [src/GRPC/Interceptor/Invoker.php](https://codecov.io/gh/spiral/roadrunner-bridge/pull/44/diff?src=pr&el=tree&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=spiral#diff-c3JjL0dSUEMvSW50ZXJjZXB0b3IvSW52b2tlci5waHA=) | `100.00% <100.00%> (ø)` | | | [src/GRPC/Interceptor/InvokerCore.php](https://codecov.io/gh/spiral/roadrunner-bridge/pull/44/diff?src=pr&el=tree&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=spiral#diff-c3JjL0dSUEMvSW50ZXJjZXB0b3IvSW52b2tlckNvcmUucGhw) | `100.00% <100.00%> (ø)` | | | ... and [4 more](https://codecov.io/gh/spiral/roadrunner-bridge/pull/44/diff?src=pr&el=tree-more&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=spiral) | | Help us with your feedback. Take ten seconds to tell us [how you rate us](https://about.codecov.io/nps?utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=spiral). Have a feature suggestion? [Share it here.](https://app.codecov.io/gh/feedback/?utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=spiral)

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