Bump Microsoft.Extensions.Configuration from 1.1.1 to 3.1.5 (#472)
Bump Microsoft.Extensions.Configuration from 1.1.1 to 3.1.5 (#472)

Bumps [Microsoft.Extensions.Configuration](https://github.com/aspnet/Extensions) from 1.1.1 to 3.1.5.
- [Release notes](https://github.com/aspnet/Extensions/releases)
- [Commits](https://github.com/aspnet/Extensions/compare/rel/1.1.1...v3.1.5)

Signed-off-by: dependabot-preview[bot] <5bdcd3c0d4d24ae3e71b3b452a024c6324c7e4bb@dependabot.com>

Co-authored-by: dependabot-preview[bot] <6a4c1c4838f800d1998274cd5234e1f65c55e90c@users.noreply.github.com>
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