fix(ci): bump pyhon 3.15 to 3.15.0b3 in sanitizer build (#1035)

Author: mayeut

.github/workflows/sanitizers.yml

@@ -21,7 +21,7 @@ jobs:
     runs-on: ubuntu-24.04
     strategy:
       matrix:
-        python_version: ["3.14", "3.15.0b2"]
+        python_version: ["3.14", "3.15.0b3"]
     steps:
       - uses: actions/checkout@df4cb1c069e1874edd31b4311f1884172cec0e10 # v6.0.3
         with: