Update openexr from 3.4.7 to 3.4.8 [emscripten-3x] (#5209)

Co-authored-by: emscripten-forge-bot <emscripten-forge-bot@users.noreply.github.com>

Author: emscripten-forge-bot

recipes/recipes_emscripten/openexr/recipe.yaml

@@ -1,5 +1,5 @@
 context:
-  version: 3.4.7
+  version: 3.4.8
   name: openexr
 
 package:
@@ -8,7 +8,7 @@ package:
 
 source:
   url: https://github.com/AcademySoftwareFoundation/openexr/archive/v${{ version }}.tar.gz
-  sha256: 6f57641fb12b019867a766e602252ed4ccb26d7354e3a15688fe9c85a391716e
+  sha256: 0dd8d50e7f04219f3f925702564e994f9acdc6133ba537ec75eb6208119bec33
 
 build:
   number: 0