fix: Explicitly cast to boolean

[eFrane]

With strict type checking, passing a non-boolean as email scan result leads to a fatal error.

[codecov]

Codecov Report

Merging #503 (15898d4) into master (f0d9e6a) will not change coverage.
The diff coverage is 100.00%.

❗ Current head 15898d4 differs from pull request most recent head adbd6b0. Consider uploading reports for the commit adbd6b0 to get more accurate results

@@            Coverage Diff            @@
##             master     #503   +/-   ##
=========================================
  Coverage     99.32%   99.32%           
  Complexity     1884     1884           
=========================================
  Files           300      300           
  Lines          5970     5970           
=========================================
  Hits           5930     5930           
  Misses           40       40           

Impacted Files	Coverage Δ
src/Security/UserProvider.php	100.00% <100.00%> (ø)

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[akondas]

Hi, thanks for contribution. Could you tell us how email_scan_result can have other value than bool? This value comes from database and is always bool ... or maybe I don't known something?

[eFrane]

It is not bool when using a sqlite database. I know that this is not the recommended configuration, but it can't hurt to cast it anyway in my opinion.

[akondas]

Thanks 👍