v2.12.1: Nov 23 2023

### Regressions

- hash: Fix deletion of entries during scan
- parser: Only enable SAX2 if there are SAX2 element handlers

### Build fixes

- autotools: Stop checking for snprintf
- dict: Fix '__thread' before 'static'
- fix: pthread weak references in globals.c (Mike Dalessio)
- tests: Fix build with older MSVC