Consistently use f-strings for string formatting

[tsalo]

Closes None.

Changes proposed in this pull request

• Use f-strings instead of % formatting or .formatting.
• Fix some long lines.

[codecov-commenter]

Codecov Report

Base: 40.15% // Head: 40.14% // Decreases project coverage by -0.01% ⚠️

Coverage data is based on head (35d09a0) compared to base (a62ca34).
Patch coverage: 60.71% of modified lines in pull request are covered.

Additional details and impacted files

@@            Coverage Diff             @@
##             main     #209      +/-   ##
==========================================
- Coverage   40.15%   40.14%   -0.01%     
==========================================
  Files         186      186              
  Lines       19877    19878       +1     
==========================================
  Hits         7981     7981              
- Misses      11896    11897       +1     

Impacted Files	Coverage Δ
aslprep/__main__.py	0.00% <0.00%> (ø)
aslprep/cli/parser.py	77.10% <0.00%> (-0.47%)	⬇️
aslprep/cli/run.py	0.00% <ø> (ø)
aslprep/cli/version.py	52.63% <0.00%> (ø)
aslprep/utils/sentry.py	0.00% <0.00%> (ø)
aslprep/workflows/asl/base.py	76.31% <ø> (ø)
aslprep/workflows/asl/ge_utils.py	16.33% <0.00%> (ø)
aslprep/workflows/asl/gecbf.py	11.47% <ø> (ø)
aslprep/workflows/asl/outputs.py	43.53% <ø> (ø)
aslprep/workflows/asl/stc.py	38.88% <ø> (ø)
... and 9 more

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