Update graph snapshot processing

[edelarua]

Closes #182

Merge after https://github.com/insightsengineering/tern/pull/1158

This should standardize the generation of graph snapshots across different systems and hopefully fix the failing integration tests for graph snapshot differences.

Note: kmg01 snapshots will be fixed after g_km is refactored.

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Unit Tests Summary

    1 files  2 suites   1m 1s :stopwatch:   24 tests 0 :heavy_check_mark:   24 :zzz: 0 :x: 290 runs  0 :heavy_check_mark: 290 :zzz: 0 :x:

Results for commit a65ee121.

:recycle: This comment has been updated with latest results.

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Unit Test Performance Difference

Test Suite	$Status$	Time on main	$±Time$	$±Tests$	$±Skipped$	$±Failures$	$±Errors$
graph-snaps	💔	$7.99$	$+1.97$	$+4$	$+4$	$0$	$0$
markdown-snaps	💔	$50.31$	$+1.03$	$0$	$0$	$0$	$0$

Additional test case details

| Test Suite | $Status$ | Time on `main` | $±Time$ | Test Case | |:-----|:----:|:----:|:----:|:-----| | graph-snaps | 💔 | $3.25$ | $+2.36$ | plot_v1 | | graph-snaps | 💀 | $0.16$ | $-0.16$ | plot_v1_and_v2 | | graph-snaps | 💀 | $0.09$ | $-0.09$ | table_v6 |

Results for commit 88f986cdfc8bb2910e6d5f4677f80fba36cc7c54

♻️ This comment has been updated with latest results.