test: add reporter jsonrpc coverage (#421) #1435

Job	Run time
Tests in Containers (ci-jupyter-container, ubuntu-latest, mcr.microsoft.com/devcontainers/univers...	4m 48s
Tests (macos-latest, x86_64-apple-darwin, yes)	16m 10s
Tests in Containers (ci-homebrew-container, ubuntu-latest, homebrew/brew, x86_64-unknown-linux-musl)	3m 53s
Tests (macos-14, aarch64-apple-darwin, yes)	12m 9s
Tests (ubuntu-latest, x86_64-unknown-linux-musl, yes)	9m 25s
Tests (windows-latest, x86_64-pc-windows-msvc, yes)	8m 0s
Builds (ubuntu-latest, x86_64-unknown-linux-musl, yes)	2m 24s
Builds (macos-latest, x86_64-apple-darwin, yes)	2m 10s
Builds (windows-latest, x86_64-pc-windows-msvc)	5m 5s
Builds (windows-latest, aarch64-pc-windows-msvc)	4m 53s
Builds (macos-14, aarch64-apple-darwin, yes)	2m 44s
Env Tests (ci-poetry-custom, ubuntu-latest, x86_64-unknown-linux-musl)	3m 11s
Env Tests (ci-poetry-project, ubuntu-latest, x86_64-unknown-linux-musl)	3m 3s
Env Tests (ci-poetry-global, windows-latest, x86_64-pc-windows-msvc)	5m 31s
Env Tests (ci-poetry-custom, windows-latest, x86_64-pc-windows-msvc)	5m 40s
Env Tests (ci-poetry-global, ubuntu-latest, x86_64-unknown-linux-musl)	3m 2s
Env Tests (ci-poetry-project, windows-latest, x86_64-pc-windows-msvc)	6m 6s
	1h 38m 14s

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