Fix ATLAS simplified geo

[jbeirer]

This pull request updates the simplified geometry, now built with the proper cell dimensions (see https://github.com/jbeirer/pygeosimplify/pull/135). In the previous input:

1. The width of barrel layers (0 - 3) dr was missing a factor 2
2. The width of all layers dz was missing a factor 2

This was the result of an insconsistent treatment of cell sizes in the ATLAS software.

The gaps between the EMB layers now visibly disappear as expected:

The resulting geometry looks as follows:

We now get more regular transportation points in the barrel region:

[codecov[bot]]

Codecov Report

All modified and coverable lines are covered by tests :white_check_mark:

Project coverage is 35.08%. Comparing base (a5d7c63) to head (1fb5d66).

Additional details and impacted files

```diff @@ Coverage Diff @@ ## main #30 +/- ## ======================================= Coverage 35.08% 35.08% ======================================= Files 218 218 Lines 10575 10575 Branches 1536 1536 ======================================= Hits 3710 3710 Misses 6865 6865 ```

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