Bump System.Reflection.Emit from 4.3.0 to 4.7.0 in /src (#31)
Bump System.Reflection.Emit from 4.3.0 to 4.7.0 in /src (#31)

Bumps [System.Reflection.Emit](https://github.com/dotnet/corefx) from 4.3.0 to 4.7.0.
- [Release notes](https://github.com/dotnet/corefx/releases)
- [Commits](https://github.com/dotnet/corefx/commits)

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

Co-authored-by: dependabot-preview[bot] <6a4c1c4838f800d1998274cd5234e1f65c55e90c@users.noreply.github.com>
r3c/cottle,r3c/cottle