Setting config_ordinal as an environment/system property should change the ordinal of the Environment/System Config Source

[Joseph-Cass]

Currently, setting config_ordinal as an environment or system property does not change the ordinal of the respective Config Source.

The MP Config spec says the default ordinal value can be updated with the config_ordinal property here.

This seems to be due to the ordinals being hard coded:

smallrye-config/implementation/src/main/java/io/smallrye/config/EnvConfigSource.java

Line 37 in 248edc7

super("EnvConfigSource", 300);

smallrye-config/implementation/src/main/java/io/smallrye/config/SysPropConfigSource.java

Line 37 in 248edc7

super("SysPropConfigSource", 400);