Fix some sanity (not yet) errors

[felixfontein]

Fixes some sanity (not yet) errors detected with ansible/ansible#71734.

[codecov]

Codecov Report

Merging #18 into main will not change coverage.
The diff coverage is 100.00%.

@@           Coverage Diff           @@
##             main      #18   +/-   ##
=======================================
  Coverage   87.73%   87.73%           
=======================================
  Files           3        3           
  Lines         106      106           
  Branches       17       17           
=======================================
  Hits           93       93           
  Misses          6        6           
  Partials        7        7           

Impacted Files	Coverage Δ
plugins/lookup/sops.py	100.00% <100.00%> (ø)
plugins/vars/sops.py	80.00% <100.00%> (ø)

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