Automatic Checks for nfssext

just use single status badge as it screws up o/w #55

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Run time

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Job	Run time
Update TeX Live cache	9s
Test build: baskervaldadf	58s
Test build: cfr-lm	19m 48s
Test build: berenisadf	3m 34s
Test build: electrumadf	2m 45s
Test build: librisadf	42s
Test build: romandeadf	57s
Test build: venturisadf	11m 12s
Test build: adforn	28s
Test build: adfsymbols	26s
Test build: fontscripts	1m 2s
Test build: nfssext-cfr	29s
	42m 30s