Bump NLog.Schema from 4.4.11 to 4.7.5

Bumps [NLog.Schema](https://github.com/NLog/NLog) from 4.4.11 to 4.7.5.
- [Release notes](https://github.com/NLog/NLog/releases)
- [Changelog](https://github.com/NLog/NLog/blob/dev/CHANGELOG.md)
- [Commits](NLog/NLog@v4.4.11...v4.7.5)

Signed-off-by: dependabot[bot] <[email protected]>

Author: dependabot[bot]

src/GraphODataTemplateWriter/packages.config

@@ -4,5 +4,5 @@
   <package id="Mono.TextTemplating" version="1.0.0" targetFramework="net45" />
   <package id="NLog" version="4.7.5" targetFramework="net472" />
   <package id="NLog.Config" version="4.4.11" targetFramework="net45" />
-  <package id="NLog.Schema" version="4.4.11" targetFramework="net45" />
+  <package id="NLog.Schema" version="4.7.5" targetFramework="net45" />
 </packages>