Bump version of snakeyaml dependency to fix NPE when compiled with graalvm

[retrogradeorbit]

Using this in a clojure project, then compiling to an uberjar, then running through GraalVM's native-image to make a native binary, then running that binary explodes with:

Exception in thread "main" java.lang.NullPointerException
	at org.yaml.snakeyaml.util.PlatformFeatureDetector.isRunningOnAndroid(PlatformFeatureDetector.java:25)
	at org.yaml.snakeyaml.introspector.PropertyUtils.<init>(PropertyUtils.java:60)
	at org.yaml.snakeyaml.introspector.PropertyUtils.<init>(PropertyUtils.java:50)
	at org.yaml.snakeyaml.constructor.BaseConstructor.getPropertyUtils(BaseConstructor.java:531)
	at org.yaml.snakeyaml.constructor.BaseConstructor.addTypeDescription(BaseConstructor.java:552)
	at org.yaml.snakeyaml.constructor.Constructor.<init>(Constructor.java:84)
	at org.yaml.snakeyaml.constructor.Constructor.<init>(Constructor.java:70)
	at org.yaml.snakeyaml.constructor.Constructor.<init>(Constructor.java:56)
	at org.yaml.snakeyaml.constructor.Constructor.<init>(Constructor.java:46)
	at yaml.reader$_STAR_constructor_STAR_.invokeStatic(reader.clj:10)
...

This is caused by a bug in older versions of snakeyaml: https://bitbucket.org/asomov/snakeyaml/issues/411/ensure-compatibility-with-graal

In order to fix this you just need to bump your snakeyaml dependency to a newer version (1.23 or above). I have tested with 1.25.

In the meantime, if compiling with graal, you can work around this issue with a deps structure like:

[io.forward/yaml "1.0.9" :exclusions [[org.yaml/snakeyaml]]]
[org.yaml/snakeyaml "1.25"]

[retrogradeorbit]

fixed in 1.0.10