deps: update jackson to 3.0.0-rc3

Migrate packages from com.fasterxml.jackson to tools.jackson, adjust
exception handling and remove JSR310 module and replace with new
JavaTimeFeature flags.

CHANGELOG.md

@@ -2,6 +2,10 @@
 
 ### Breaking
 * Requires Java 17 or later
+* Required Jackson 3
+
+### Dependencies
+* Updated Jackson to 3.0.0
 
 
 ## 1.5.0 (2025-04-13)
@@ -19,9 +23,6 @@
 ### Fix
 * Fix initialization from environment without explicit port
 
-### Dependencies
-* Updated Jackson to 2.18.3 (#90)
-
 ### Test
 * Tested against Vault 1.2 to 1.19