CUST-4527 added 'unknown' as a conferencing provider#287

samuelpx merged 4 commits intomainnylas/nylas-java:mainfrom

CUST-4527-v-3-java-sdk-conferencing-provider-enum-missing-unknown-value-causes-json-data-exceptionnylas/nylas-java:CUST-4527-v-3-java-sdk-conferencing-provider-enum-missing-unknown-value-causes-json-data-exceptionCopy head branch name to clipboard