chore(deps): update dependency jetbrains.annotations to v2025

Author: renovate[bot]

src/Octokit.Webhooks/Octokit.Webhooks.csproj

@@ -7,7 +7,7 @@
   </PropertyGroup>
 
   <ItemGroup>
-    <PackageReference Include="JetBrains.Annotations" Version="2024.3.0" PrivateAssets="all" />
+    <PackageReference Include="JetBrains.Annotations" Version="2025.2.0" PrivateAssets="all" />
     <PackageReference Include="Macross.Json.Extensions" Version="3.0.0" />
     <PackageReference Include="Microsoft.Extensions.Primitives" Version="9.0.8" />
   </ItemGroup>