AMReX/pyAMReX/PICSAR: weekly update (#5468)

- Weekly update to latest AMReX:
```console
./Tools/Release/updateAMReX.py
```
- Weekly update to latest pyAMReX:
```console
./Tools/Release/updatepyAMReX.py
```
- Weekly update to latest PICSAR (no changes):
```console
./Tools/Release/updatePICSAR.py
```

cmake/dependencies/pyAMReX.cmake

@@ -74,7 +74,7 @@ option(WarpX_pyamrex_internal "Download & build pyAMReX" ON)
 set(WarpX_pyamrex_repo "https://github.com/AMReX-Codes/pyamrex.git"
     CACHE STRING
     "Repository URI to pull and build pyamrex from if(WarpX_pyamrex_internal)")
-set(WarpX_pyamrex_branch "24.11"
+set(WarpX_pyamrex_branch "66fc71fecf77eee903e9c60100f1243f9e157744"
     CACHE STRING
     "Repository branch for WarpX_pyamrex_repo if(WarpX_pyamrex_internal)")