Update release notes for upcoming 2.2.0 build

Author: bd808

package.xml

@@ -32,6 +32,9 @@
  <license uri="http://www.opensource.org/licenses/mit-license.php">MIT</license>
  <notes>
   Bugs Fixed:
+  - Remove use of call_user_function_ex() for compat with PHP 8.0.0a2 (andypost)
+  - Adjust test values for compat with 32bit platforms (bd808)
+  - Fix memory leaks (cmb69)
   - #79567 Parsing long long values leads to truncation on LLP64 platforms (bd808)
   - #77720 Out of memory error when parsing yaml file (bd808)
   - [-Wformat=] issue on 32-bit (remicollet)