Add Linux dependencies for building sentry-native to CONTRIBUTING.md (#4090)

Author: hangy

CONTRIBUTING.md

@@ -39,6 +39,8 @@ For big feature it's advised to raise an issue to discuss it first.
   - `Sentry.DiagnosticSource.IntegrationTests.csproj` uses [SQL LocalDb](https://docs.microsoft.com/sql/database-engine/configure-windows/sql-server-express-localdb) - [download SQL LocalDB 2019](https://download.microsoft.com/download/7/c/1/7c14e92e-bdcb-4f89-b7cf-93543e7112d1/SqlLocalDB.msi). To avoid running these tests, unload `Sentry.DiagnosticSource.IntegrationTests.csproj` from the solution.
 * On macOS/Linux
   - [Mono 6 or higher](https://www.mono-project.com/download/stable) to run the unit tests on the `net4x` targets.
+* On Linux
+  - **curl** and **zlib** libraries (e.g. on Ubuntu: libcurl4-openssl-dev, libz-dev) to build the [sentry-native](https://github.com/getsentry/sentry-native/) module.
 
 ## .NET MAUI Requirements