CompatHelper: bump compat for Bijectors to 0.14, (keep existing compat)

[github-actions]

This pull request changes the compat entry for the Bijectors package from 0.13.6 to 0.13.6, 0.14.
This keeps the compat entries for earlier versions.

Note: I have not tested your package with this new compat entry.
It is your responsibility to make sure that your package tests pass before you merge this pull request.

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 86.39%. Comparing base (d2ea94a) to head (1b65681).
Report is 4 commits behind head on master.

Additional details and impacted files

@@            Coverage Diff             @@
##           master    #2385      +/-   ##
==========================================
- Coverage   86.45%   86.39%   -0.07%     
==========================================
  Files          22       22              
  Lines        1573     1573              
==========================================
- Hits         1360     1359       -1     
- Misses        213      214       +1     

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[penelopeysm]

Do not merge

This isn't actually testing Bijectors 0.14, it's using Bijectors 0.13 because it's still limited by DynamicPPL's compat entry.

cf. TuringLang/DynamicPPL.jl#701

[coveralls]

Pull Request Test Coverage Report for Build 11584734613

Details

• 0 of 0 changed or added relevant lines in 0 files are covered.
• 1 unchanged line in 1 file lost coverage.
• Overall coverage decreased (-0.06%) to 78.685%

---

Files with Coverage Reduction	New Missed Lines	%
ext/TuringOptimExt.jl	1	98.04%

Totals
Change from base Build 11573267768:	-0.06%
Covered Lines:	1233
Relevant Lines:	1567

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💛 - Coveralls