CLI: grant exception for EPL-2.0 license in colored_json

Ideally we'd avoid having to grant the exception but for right now it's
probably fine.

I looked at 2 alternatives:
- https://github.com/saghm/json-color
- https://github.com/andrewhickman/termcolor-json

While both of these seemed able to give similar output, configrable
colors, etc, each of these had issues with color mode detection and
overriding.

We should revisit this at a later date.

deny.toml

@@ -33,6 +33,7 @@ allow = [
 confidence-threshold = 0.8
 exceptions = [
     #{ allow = ["Zlib"], name = "adler32", version = "*" },
+#    { allow = ["EPL-2.0"], name = "colored_json", version = "*" }
 ]
 
 [[licenses.clarify]]