Fix some input conversion issues in aesara.tensor

[brandonwillard]

This PR fixes some bugs in aesara.tensor helper functions caused by a lack of as_tensor_variable conversions.

[codecov]

Codecov Report

Merging #952 (cfbe867) into main (6cca25e) will increase coverage by 0.00%.
The diff coverage is 89.47%.

@@           Coverage Diff           @@
##             main     #952   +/-   ##
=======================================
  Coverage   78.99%   78.99%           
=======================================
  Files         152      152           
  Lines       47795    47809   +14     
  Branches    10888    10893    +5     
=======================================
+ Hits        37754    37768   +14     
  Misses       7541     7541           
  Partials     2500     2500           

Impacted Files	Coverage Δ
aesara/compile/compiledir.py	0.00% <0.00%> (ø)
aesara/compile/function/types.py	79.91% <ø> (ø)
aesara/compile/profiling.py	75.13% <ø> (ø)
aesara/graph/opt.py	64.97% <0.00%> (ø)
aesara/link/c/basic.py	87.36% <ø> (ø)
aesara/link/c/cmodule.py	52.40% <ø> (ø)
aesara/link/jax/dispatch.py	80.86% <ø> (ø)
aesara/scan/basic.py	85.09% <ø> (ø)
aesara/sparse/opt.py	75.56% <ø> (-0.05%)	⬇️
aesara/tensor/nnet/basic.py	80.28% <0.00%> (ø)
... and 12 more