Update to ASP.NET 5.0.2

[martincostello]

Update NuGet packages for ASP.NET 5.0.2.

[codecov]

Codecov Report

Merging #688 (53c9826) into main (a885174) will not change coverage.
The diff coverage is n/a.

@@           Coverage Diff           @@
##             main     #688   +/-   ##
=======================================
  Coverage   85.77%   85.77%           
=======================================
  Files          51       51           
  Lines         970      970           
=======================================
  Hits          832      832           
  Misses        138      138           

Flag	Coverage Δ
linux	85.77% <ø> (ø)
macos	85.77% <ø> (ø)
windows	85.77% <ø> (ø)

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