Backend/Ether: retry/catch InternalErr=-32603 code #2893

Job	Run time
linux20-vanilla--newmono-only	5m 39s
linux20-github--dotnet-and-newmono	3m 35s
linux20-github--dotnet-and-mono	3m 43s
linux20-vanilla--stockmono-only	4m 59s
linux22-github--dotnet-and-mono	3m 41s
linux22-github--dotnet-and-newmono	3m 52s
linux22-vanilla--newmono-only	5m 45s
linux22-vanilla--stockdotnet6-and-newmono	5m 35s
linux22-vanilla--stockdotnet6-and-stockmono	4m 45s
linux22-vanilla--stockdotnet6-only	4m 35s
linux22-vanilla--stockmono-only	4m 48s
macOS--dotnet6-and-mono	7m 3s
macOS--dotnet6-only	4m 9s
macOS--mono-only	5m 49s
windows--dotnet6-and-legacyFramework	5m 18s
windows--dotnet6-only	6m 43s
windows--legacyFramework-only	13m 47s
conventions	1m 10s
snap_pkg	0s
	1h 34m 56s

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