Bump Stripe.net from 47.3.0 to 51.2.0

---
updated-dependencies:
- dependency-name: Stripe.net
  dependency-version: 51.2.0
  dependency-type: direct:production
  update-type: version-update:semver-major
...

Signed-off-by: dependabot[bot] <support@github.com>

Author: dependabot[bot]

src/ToastRevival.Api/ToastRevival.Api.csproj

@@ -17,7 +17,7 @@
     <PackageReference Include="Npgsql.EntityFrameworkCore.PostgreSQL" Version="9.0.4" />
     <PackageReference Include="Otp.NET" Version="1.4.1" />
     <PackageReference Include="QuestPDF" Version="2025.1.0" />
-    <PackageReference Include="Stripe.net" Version="47.3.0" />
+    <PackageReference Include="Stripe.net" Version="51.2.0" />
     <PackageReference Include="Swashbuckle.AspNetCore" Version="6.6.2" />
   </ItemGroup>