v5.5.11

Change log:

cd73b61 Upgrade dependencies; prepare for release
f5efa0d GH-3765 Resolve Lookup ctor lazily via reflection
c75be10 Close mail folder if no messages to produce
de4b3a3 Removed unused import
b645772 Remove Werror option from JavaDoc config
6d86a15 Enforce Java with Gradle options.release = 8
81f5b6b Fix JacksonJsonUtils for Java 8 compatibility
dfaf500 Fix AMQP test for NPE from mocks
343be47 RGH-1439: AMQP: Log Warn For Misconfigured Confirm