Merge branch 'jpeg-capture-in-stacking' into 'v3'

2MP from 8MP capturing

Closes #364, #413, #298, #303, #288, #358, and #433

See merge request openflexure/openflexure-microscope-server!251

pyproject.toml

@@ -40,7 +40,7 @@ dev = [
   "matplotlib~=3.10"
 ]
 pi = [
-  "labthings-picamera2 == 0.0.2",
+  "picamera2~=0.3.27",
 ]
 
 [project.scripts]
@@ -84,8 +84,8 @@ addopts = [
 ]
 
 norecursedirs = [".git", "build", "node_modules"]
-
 pythonpath = ["."]
+testpaths = ["tests"]
 
 [tool.ruff.format]
 # Use native line endings for all files