_component_data_iter now uses sorted_robust

[PierreAttard]

Fixes # .

Fix #1845

Summary/Motivation:

This resolves an issue with sorted_robust reported by @emma58 in #1845.
Block._component_data_iter does not use the correction did @jsiirola in the PR #1842. I just add his correction to the current PR in order to solve #1845.

Changes proposed in this PR:

• Extend the sorted_robust API to accept key= and reverse= arguments
• import sorted_robust in block.py and sort with sorted_robust instead of six.itemgetter

Legal Acknowledgement

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1. I agree my contributions are submitted under the BSD license.
2. I represent I am authorized to make the contributions and grant the license. If my employer has rights to intellectual property that includes these contributions, I represent that I have received permission to make contributions and grant the required license on behalf of that employer.

[codecov]

Codecov Report

Merging #1852 (45632e6) into main (e6ed67e) will increase coverage by 0.00%.
The diff coverage is 100.00%.

@@           Coverage Diff           @@
##             main    #1852   +/-   ##
=======================================
  Coverage   79.69%   79.69%           
=======================================
  Files         560      560           
  Lines       69822    69828    +6     
=======================================
+ Hits        55646    55652    +6     
  Misses      14176    14176           

Impacted Files	Coverage Δ
pyomo/core/base/block.py	90.61% <100.00%> (+0.01%)	⬆️
pyomo/core/base/misc.py	82.06% <100.00%> (+0.64%)	⬆️

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[jsiirola]

We definitely need to move to using sorted_robust, but we need to preserve the use of itemgetter(0) so that component data objects are not accidentally compared. There is a PR to this PR (PierreAttard#1) that extends the sorted_robust API to support key= and reverse= arguments and adds tests. If/once merged, then this PR should be ready to go.

[jsiirola]

Looks good, pending successful tests

[PierreAttard]

Is that possible to re-run a specific test ?

Win3.6 and 3.8 tests fails because of that :

[jsiirola]

Unfortunately, no. GHA only supports "rerun everything". We will wait to see if everything else passes, and if it does, I would be comfortable merging even with those failures (as they are unrelated to this PR).