run pyupgrade for python 3.8 compatibility

[mashehu]

Manually checked changes and look good to me (wast majority is just removing the now default "r" from open() statements)

[codecov]

Codecov Report

Attention: 11 lines in your changes are missing coverage. Please review.

Comparison is base (7831f7a) 75.19% compared to head (74d22ab) 75.04%.
Report is 1 commits behind head on dev.

Files	Patch %	Lines
nf_core/modules/bump_versions.py	25.00%	3 Missing ⚠️
nf_core/components/info.py	50.00%	1 Missing ⚠️
nf_core/lint/files_unchanged.py	66.66%	1 Missing ⚠️
nf_core/modules/lint/main_nf.py	66.66%	1 Missing ⚠️
nf_core/modules/lint/module_patch.py	66.66%	1 Missing ⚠️
nf_core/modules/lint/module_tests.py	75.00%	1 Missing ⚠️
nf_core/subworkflows/lint/subworkflow_tests.py	75.00%	1 Missing ⚠️
nf_core/sync.py	0.00%	1 Missing ⚠️
nf_core/utils.py	87.50%	1 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##              dev    #2623      +/-   ##
==========================================
- Coverage   75.19%   75.04%   -0.15%     
==========================================
  Files          85       85              
  Lines        9384     9389       +5     
==========================================
- Hits         7056     7046      -10     
- Misses       2328     2343      +15     

☔ View full report in Codecov by Sentry.
📢 Have feedback on the report? Share it here.

[mashehu]

superseded by #2620