Merge remote-tracking branch 'origin/main' into main

# Conflicts:
#	sras_compute.py
#	sras_viewer.py
#	sras_workers.py
#	tools/make_test_sras.py
#	tools/test_refactor.py

sras_average.py

@@ -47,7 +47,7 @@ def read_header_sections(sras: SrasFile) -> bytes:
     lost in a re-encode."""
     with open(sras.path, "rb") as f:
         f.seek(HDR_SIZE)
-        return f.read(sras._data_offset - HDR_SIZE)
+        return f.read(sras.data_offset - HDR_SIZE)
 
 
 def average_rows(block: np.ndarray, n: int, discard_remainder: bool) -> np.ndarray: