FIX: Set prov==1.5.0 dependency

[effigies]

This PR explores the issues with the currently failing builds.

Currently checking whether the prov 1.5.1 release is the issue.

[codecov-io]

Codecov Report

Merging #2137 into master will increase coverage by 1.84%.
The diff coverage is 100%.

@@            Coverage Diff             @@
##           master    #2137      +/-   ##
==========================================
+ Coverage   70.33%   72.17%   +1.84%     
==========================================
  Files        1153     1157       +4     
  Lines       57584    57970     +386     
  Branches     8327     8327              
==========================================
+ Hits        40501    41842    +1341     
+ Misses      15596    14808     -788     
+ Partials     1487     1320     -167

Flag	Coverage Δ
#smoketests	72.17% <100%> (+1.84%)	⬆️
#unittests	69.82% <100%> (ø)	⬆️

Impacted Files	Coverage Δ
nipype/info.py	84.37% <100%> (ø)	⬆️
examples/fmri_spm_dartel.py	85.18% <0%> (ø)
examples/fmri_fsl_reuse.py	75.67% <0%> (ø)
examples/fmri_spm_nested.py	86.44% <0%> (ø)
examples/fmri_fsl_feeds.py	96.61% <0%> (ø)
nipype/interfaces/freesurfer/preprocess.py	64.84% <0%> (+0.19%)	⬆️
nipype/interfaces/base.py	83.25% <0%> (+0.81%)	⬆️
nipype/interfaces/utility/base.py	91.01% <0%> (+1.12%)	⬆️
nipype/interfaces/fsl/maths.py	99.42% <0%> (+1.15%)	⬆️
nipype/pipeline/engine/nodes.py	84.88% <0%> (+1.52%)	⬆️
... and 19 more

---

Continue to review full report at Codecov.

Legend - Click here to learn more
Δ = absolute <relative> (impact), ø = not affected, ? = missing data
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[codecov-io]

Codecov Report

Merging #2137 into master will increase coverage by 1.84%.
The diff coverage is 100%.

@@            Coverage Diff             @@
##           master    #2137      +/-   ##
==========================================
+ Coverage   70.33%   72.17%   +1.84%     
==========================================
  Files        1153     1157       +4     
  Lines       57584    57970     +386     
  Branches     8327     8327              
==========================================
+ Hits        40501    41842    +1341     
+ Misses      15596    14808     -788     
+ Partials     1487     1320     -167

Flag	Coverage Δ
#smoketests	72.17% <100%> (+1.84%)	⬆️
#unittests	69.82% <100%> (ø)	⬆️

Impacted Files	Coverage Δ
nipype/info.py	84.37% <100%> (ø)	⬆️
examples/fmri_spm_dartel.py	85.18% <0%> (ø)
examples/fmri_fsl_reuse.py	75.67% <0%> (ø)
examples/fmri_spm_nested.py	86.44% <0%> (ø)
examples/fmri_fsl_feeds.py	96.61% <0%> (ø)
nipype/interfaces/freesurfer/preprocess.py	64.84% <0%> (+0.19%)	⬆️
nipype/interfaces/base.py	83.25% <0%> (+0.81%)	⬆️
nipype/interfaces/utility/base.py	91.01% <0%> (+1.12%)	⬆️
nipype/interfaces/fsl/maths.py	99.42% <0%> (+1.15%)	⬆️
nipype/pipeline/engine/nodes.py	84.88% <0%> (+1.52%)	⬆️
... and 19 more

---

Continue to review full report at Codecov.

Legend - Click here to learn more
Δ = absolute <relative> (impact), ø = not affected, ? = missing data
Powered by Codecov. Last update 9b0686d...9915615. Read the comment docs.

[effigies]

prov 1.5.1 seems to be the issue.

@satra do we want to go ahead and merge this for now, and then start a new branch for relaxing the constraint and fixing the underlying issues?