GTK build with dotnet6+xbuild #2614

Job	Run time
macOS--mono-only	16m 59s
linux22-github--dotnet-and-mono	4m 50s
linux22-github--dotnet-and-newmono	7m 40s
linux22-vanilla--stockdotnet6-only	6m 20s
linux22-vanilla--stockmono-only	5m 54s
macOS--dotnet6-and-mono	20m 22s
macOS--dotnet6-only	7m 24s
windows--dotnet6-and-legacyFramework	7m 37s
windows--dotnet6-only	8m 5s
windows--legacyFramework-only	15m 46s
linux20-github--dotnet-and-mono	4m 24s
linux20-github--dotnet-and-newmono	8m 33s
linux20-vanilla--newmono-only	10m 16s
linux20-vanilla--stockmono-only	6m 30s
linux22-vanilla--stockdotnet6-and-newmono	8m 3s
linux22-vanilla--stockdotnet6-and-stockmono	6m 45s
linux22-vanilla--newmono-only	10m 21s
conventions	1m 10s
snap_pkg	9m 36s
	2h 46m 35s

Provide feedback