Apply Scalafmt to `examples/` in CI (#3903) #2006

Job	Run time
test-docs	5m 35s
build-windows / run	7m 9s
build-linux / run	3m 47s
compiler-bridge / run	1m 13s
lint-autofix / run	2m 47s
itest (11, ci/test-mill-dev.sh && ci/test-mill-release.sh && ./mill -i -k __.ivyDepsTree && ./mil... / run	3m 49s
itest (17, ci/test-mill-bootstrap.sh) / run	8m 56s
linux (17, true, 'example.javalib.__.local.testCached') / run	23m 8s
linux (17, true, 'example.kotlinlib.__.local.testCached') / run	26m 10s
windows (11, contrib.__.testCached) / run	17m 31s
windows (11, "example.scalalib.{basic,web}.__.fork.testCached") / run	13m 8s
windows (11, 'integration.invalidation[_].server.testCached') / run	15m 45s
windows (11, "{main,scalalib,bsp}.__.testCached") / run	13m 26s
windows (17, 'integration.{feature,failure}[_].fork.testCached') / run	14m 56s
	2h 37m 20s

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