bump crengine: various minor fixes and tweaks (#10044)

Includes:
- LVHashTable: fix iterator implementation
- Text: fix mismatched `free` on `new`-allocated memory
- Fonts: fix possible memory leak in RegisterExternalFont()
- Avoid computing document CRC32 if metadataOnly
- LVStream: fix `LVStreamFragment` implementation
- (crengine-ng) Various small picks: unused variables, cast & types
- (crengine-ng) LVStream: minor fixes
- (crengine-ng) LVStream: cleanup zip processing
- (crengine-ng) ldomDataStorageManager: fix cast & types
- (crengine-ng) ldomDataStorageManager: fix possible segfault
- (crengine-ng) DOM/MathML: more currNode/parentNode sanity checks
- (crengine-ng) Default style: use cr3.ini fg & bg colors
- (crengine-ng) Support regular documents inside zip
- HyphMan: silence some clang warnings
- Stylesheets: support percent-encoded stylesheet links
- LVFontDef::CalcMatch(): don't use the bias if typeface matches

Also includes:
- LRU: Add a couple of APIs to get/set the cache size
- xtext: fix inconsistent rendering of arabic text

base

@@ -1 +1 @@
-Subproject commit 210d7d27b11026b7884876b61d4f4796066b3f3e
+Subproject commit 97995c2ce333fbb4fbba737b20fa92b43a914405