revert to schema-salad 8.4.20230817074451 to fix format field handling

[mr-c]

No description provided.

[codecov]

Codecov Report

Merging #256 (c95da89) into main (c2ab3cd) will increase coverage by 8.95%.
The diff coverage is 46.52%.

@@            Coverage Diff             @@
##             main     #256      +/-   ##
==========================================
+ Coverage   32.03%   40.99%   +8.95%     
==========================================
  Files          30       30              
  Lines       30483    23563    -6920     
  Branches     9137     6406    -2731     
==========================================
- Hits         9765     9659     -106     
+ Misses      18169    11827    -6342     
+ Partials     2549     2077     -472     

Files	Coverage Δ
cwl_utils/parser/cwl_v1_0.py	41.31% <ø> (+10.81%)	⬆️
cwl_utils/parser/cwl_v1_1.py	37.06% <ø> (+9.60%)	⬆️
cwl_utils/parser/cwl_v1_2.py	38.82% <ø> (+10.38%)	⬆️
cwl_utils/parser/utils.py	80.46% <ø> (ø)
cwl_utils/parser/cwl_v1_0_utils.py	79.07% <90.00%> (ø)
cwl_utils/parser/cwl_v1_1_utils.py	72.98% <77.27%> (ø)
cwl_utils/parser/cwl_v1_2_utils.py	78.85% <77.27%> (ø)
cwl_utils/cwl_v1_2_expression_refactor.py	32.95% <31.03%> (ø)
cwl_utils/cwl_v1_1_expression_refactor.py	23.90% <12.50%> (ø)
cwl_utils/cwl_v1_0_expression_refactor.py	28.28% <11.11%> (ø)