CompatHelper: bump compat for "TensorCast" to "0.3"

[github-actions]

This pull request changes the compat entry for the TensorCast package from 0.2 to 0.2, 0.3.

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-io]

Codecov Report

Merging #281 into master will decrease coverage by 0.06%.
The diff coverage is 0.00%.

@@            Coverage Diff             @@
##           master     #281      +/-   ##
==========================================
- Coverage   16.98%   16.91%   -0.07%     
==========================================
  Files          38       38              
  Lines        2108     2116       +8     
==========================================
  Hits          358      358              
- Misses       1750     1758       +8     

Impacted Files	Coverage Δ
src/factors/flux/FluxModelsPose2Pose2.jl	0.00% <0.00%> (ø)
src/factors/flux/models/Pose2OdoNN_01.jl	0.00% <ø> (ø)

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