Enricher no longer parses the enrichment files with the '.hocon' extension

[marcin-j]

Hi

In version 5.x enricher was able to parse enrichment files with .hocon extension. In version 6.x it completely ignores all the enrichment files ending with .hocon.

Simply changing the enrichment extensions to .json resolves the issue, but we use environment variables inside enrichment files, and JSON syntax treated as incorrect which is a slight inconvenience.