Bump RestSharp from 106.2.1 to 106.12.0 in /BandsInTownTest

Bumps [RestSharp](https://github.com/restsharp/RestSharp) from 106.2.1 to 106.12.0.
- [Release notes](https://github.com/restsharp/RestSharp/releases)
- [Commits](restsharp/RestSharp@106.2.1...106.12)

---
updated-dependencies:
- dependency-name: RestSharp
  dependency-type: direct:production
...

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Author: dependabot[bot]

BandsInTownTest/packages.config

@@ -1,6 +1,6 @@
-<?xml version="1.0" encoding="utf-8"?>
+<?xml version="1.0" encoding="utf-8"?>
 <packages>
   <package id="Newtonsoft.Json" version="13.0.2" targetFramework="net461" />
-  <package id="RestSharp" version="106.2.1" targetFramework="net461" />
+  <package id="RestSharp" version="106.12.0" targetFramework="net461" />
   <package id="System.ValueTuple" version="4.4.0" targetFramework="net461" />
 </packages>