Make InstrumentModule/Channel take a generic instrument argument

[jenshnielsen]

This makes it possible to write drivers that use features from the parent without explicit cast

• Changelog

[codecov]

Codecov Report

❌ Patch coverage is 40.74074% with 16 lines in your changes missing coverage. Please review.
✅ Project coverage is 59.77%. Comparing base (6482ff0) to head (3c9010c).
⚠️ Report is 13 commits behind head on main.

Files with missing lines	Patch %	Lines
...rc/qcodes/instrument_drivers/rigol/Rigol_DG1062.py	35.71%	9 Missing ⚠️
src/qcodes/instrument/channel.py	0.00%	6 Missing ⚠️
...nstrument_drivers/Lakeshore/Lakeshore_model_325.py	50.00%	1 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #7659      +/-   ##
==========================================
+ Coverage   59.66%   59.77%   +0.11%     
==========================================
  Files         352      352              
  Lines       31656    31655       -1     
==========================================
+ Hits        18888    18923      +35     
+ Misses      12768    12732      -36     

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