Adjustment to the proportion handing in the CMME importer #1611

Job	Run time
Set up and cache emscripten	9s
Build ubuntu-20.04-g++-10	5m 10s
Copy the font files	5s
Build ubuntu-22.04-g++-11	5m 1s
Build ubuntu-22.04-g++-12	5m 56s
Build ubuntu-20.04-clang-10	5m 38s
Build ubuntu-20.04-clang-11	5m 31s
Build ubuntu-20.04-clang-12	5m 46s
Build macos-latest-xcode-14.3	3m 18s
Build macos-latest-xcode-15.3	3m 8s
Build macos-latest-g++-12	3m 58s
Build JS toolkit (nohumdrum, Building toolkit without humdrum, -c -H -M, verovio-toolkit.js*)	6m 27s
Build JS toolkit (light, Building toolkit without humdrum as light version, -c -H -l -M, verovio-...	6m 37s
Build JS toolkit (wasm, Building toolkit without humdrum as wasm, -c -H -w -M, veroviowasm, true)	5m 37s
Build JS toolkit (default, Building default toolkit with humdrum, -c -M, -hum.js)	8m 59s
Check settings for deployment	1s
Build documentation	1m 29s
Deploy JS toolkit	1m 9s
Deploy documentation	1m 55s
Skip deployment if set	0s
	1h 15m 54s

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