Use stronger typing with Mypy

[hoh]

Depends on #555 - Fix: Caller expected tuple but got a single value

Changes:

• Fix: Type checks were not enforced
• Fix: Mypy configuration was inline

[codecov]

Codecov Report

Attention: Patch coverage is 38.29787% with 29 lines in your changes are missing coverage. Please review.

Project coverage is 34.59%. Comparing base (d347031) to head (1daefc3).

Files	Patch %	Lines
src/aleph/vm/conf.py	0.00%	6 Missing ⚠️
src/aleph/vm/hypervisors/qemu/qemuvm.py	0.00%	6 Missing ⚠️
src/aleph/vm/models.py	64.28%	5 Missing ⚠️
src/aleph/vm/orchestrator/pubsub.py	37.50%	5 Missing ⚠️
src/aleph/vm/hypervisors/firecracker/microvm.py	40.00%	3 Missing ⚠️
src/aleph/vm/network/interfaces.py	0.00%	2 Missing ⚠️
src/aleph/vm/pool.py	33.33%	2 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main     #556      +/-   ##
==========================================
- Coverage   34.76%   34.59%   -0.18%     
==========================================
  Files          52       52              
  Lines        4752     4770      +18     
  Branches      555      558       +3     
==========================================
- Hits         1652     1650       -2     
- Misses       3082     3102      +20     
  Partials       18       18              

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